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THE JET AGE MUSEUM RESERVE MODEL COLLECTION PRESENTS |
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THE GRUMMAN STORY |
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OVERVIEW |
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The Grumman
Aircraft Engineering Corporation was founded on 5 December 1929 by Leroy
Grumman and four of his fellow former Loening Aircraft Engineering
Corporation employees when Loening was bought by the Keystone Aircraft
Corporation and operations moved from Long Island, New York, to Bristol,
Pennsylvania.
Starting work
on 2 January 1930, Grumman began welding aluminium tubes for truck
frames - with motor vehicle and canoe building becoming profitable
alternatives to aircraft manufacture until Grumman merged with Northrop
in 1994.
However, Leroy
Grumman's long association with the United States Navy began with his
design for the first practical seaplane floats with retractable wheels,
followed by his first complete aircraft, the FF-1 biplane (pictured
above) - also with
retractable wheels in its floats -and first flown on 29 December 1931.
During World
War II Grumman became known for its F4F Wildcat and F6F Hellcat fighters
as well as the Avenger torpedo bomber and Albatross and Gosling twin engined
amphibious flying boats.
The F9F Panther
of 1949 marked Grumman's entry into the jet age followed by the swept
wing Cougar and variable geometry F-14 Tomcat of "Top Gun" film fame.
Also serving with the US Navy were the A-6 Intruder and EA-6 Prowler
jets along with the piston engined anti-submarine S-2 Tracker - and
turboprop E-2 Hawkeye flying radar stations, as pictured below.
Grumman also
built the Lunar Excursion Module which landed twelve Apollo astronauts
on the Moon as well as the wings and vertical stabiliser of the Space
Shuttle orbiter as sub-contractor for Rockwell, but still diversified
into crop spraying biplanes such as the Ag-Cat, first flown in 1957.
In 1969 the
company changed its name to Grumman Aerospace Corporation, and in 1978
it sold the Grumman-American Division to Gulfstream Aerospace.
In 1990 the
Outboard Marine Corporation bought Grumman's boat building division and
after the last Grumman designed canoe was produced in 1996 former
Grumman executives formed the Marathon Boat Group to keep the name and
design - as seen in the film "Deliverance" - alive.
Meanwhile
Grumman Olson P-600 and P-6800 aluminium stepvan bodies were produced
for parcel carrier UPS as well as Firecat fire engines and the 1986
vintage Long Life Vehicle for United States Postal Service deliveries. |
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THE CLIC SARGEANT
CHALLENGE |
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In 2011 Mike Walker, organiser of the
long running Cheltenham GWR Modeller's Exhibitions in aid of CLIC
Sargeant Cancer Charity, was kind enough to offer me an entire room -
just off the stage at St Margaret's Hall - for a model presentation in
April 2012. As I had not fielded any Americana since my first
appearance at Coniston Road with
Lockheed Aircraft in October 2005 I
decided that it was time to give the East Coast a look in - not least as
a Grumman theme would also allow me to have another crack at a
Lunar Module diorama - more of which later.
In fact I already had a diorama box based on a
Grumman Panther
downed during the Korean War ready for another exhibition appearance and
had some time before featured a number of the swept and variable
geometry jet aircraft to emerge from Grumman's Long Island "Ironworks" in
the article Rainbow of the US Navy,
devised to highlight the role of different carrier deck specialists and
their distinctive coloured
uniforms. Having measured the
room in question at St Margaret's Hall I then found that there would be
table space for the most modern Grumman fast jets to be laid out in the
manner of a New England Naval Air Station on the Airfield Embankment
diorama ( complete with some of my American trains not exhibited before ) and for the Airfield Embankment's alternative grass field
to be converted to a Pacific island recently captured by the US Marine
Corps during World War II. |
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GRUMMAN ISLAND |
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The map above
illustrates the vast distances over which the armed forces of the United
States of America and its allies fought the Empire of Japan between 1941
and 1945 following both the 7 December 1941 attack on Pearl Harbor and
the loss of the Royal Navy's
Force Z three days
later.
Both General Douglas McArthur, advancing from Guadalcanal to
The Philippines, and Admiral Chester Nimitz, advancing from Tarawa via
the Marshall and Marianas Islands to Iwo Jima and Okinawa, relied on
aircraft to help amphibious forces capture strategic island airfields
for each new phase of victory.
This island-hopping war across the
Pacific Ocean also saw opposing naval forces fight for the first time
without seeing each other, using aircraft in effect as long range
artillery.
My "Grumman
Island" diorama
therefore represented a Pacific island airfield recently captured by US Marines
with a tracked LVT- 4 and wheeled DUKW bringing supplies to a
command post while a General Motors 2 1/2 ton tanker truck refuelled a Grumman F6F
Hellcat fighter flanked by an earlier F4F Martlet and a larger TBM-3
Avenger torpedo bomber. |
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In 1936 Grumman
won the US Navy contract to build a new monoplane fighter which - after
several modifications - first flew as the XF4F-2 on 2 September 1937.
An improved version was ordered into production in August 1939 with the
first five aircraft going to Canada and the next 90 going to the Royal
Navy to equip 804 Squadron of the Fleet Air Arm.
Known there as
the Martlet Mark 1, two of the four-gun armed radial engined fighters
became - in December 1940 - the first American made aircraft to shoot
down a German aircraft in World War II.
The first US Navy
F4F-3
was flown on 20 August 1940, powered by a Pratt & Whitney R-1830 engine
with 1,200 horsepower and the subsequent
F4F-4
(Martlet Mark II) boasting folding wings, six guns and
self-sealing fuel tanks, was delivered in November 1941. It was then
that the name "Wildcat" was first given to the F4F.
US Navy and Marine Corps Wildcats flew in all of
the major Pacific battles as well as in North Africa with the Navy but
in mid 1942, Grumman realized that it needed to concentrate on the
production of its new F6F Hellcat fighter, and so contracted General
Motors to build the Wildcat under the designation
FM-1.
The first FM-1 flew on 31 August 1942, and over 1
150 of them were produced, hundreds of which went to the Fleet Air Arm
as the
Martlet
Mk V.
General Motors next developed
an improved version, called the
FM-2
(Wildcat
Mk VI
in the Fleet Air Arm, the Martlet designation having been dropped in
March 1944), which was powered by a Wright R-1820 engine with 1 350
horsepower and featured a taller vertical tail than the FM-1. Over 4,700
FM-2s were built before the Wildcat was eclipsed by the more capable
fighters which appeared later in the war. |
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To create
the Grumman Hellcat, major design changes from the Wildcat included a
low-mounted wing, wider landing gear which retracted into the wings,
a more powerful engine, improved cockpit armour plating, and increased
ammunition capacity.
The Navy ordered four
prototypes of the new fighter, each with a different engine for test and
evaluation purposes. Less than a year later, on 26 June 1942, the first
prototype (the XF6F-1, with a Wright
R-2600 Cyclone engine) flew for the first time. Before much meaningful
evaluation of the various engines could be made, however, the Navy
decided to press the Hellcat into production by fitting the XF6F-1
prototype with the most powerful engine available, the Pratt & Whitney
R-2800 Double Wasp. (This turned it into an
XF6F-3. The XF6F-2 and XF6F-4 were
never evaluated.)
The first production
model, the F6F-3, first flew in October 1942, and deliveries
began four months later with squadron VF-9 on the
USS
Essex in the Pacific. The Hellcat was later credited with
over 75% of the US Navy's air-to-air kills in the war.
The Fleet Air Arm
received 252 F6F-3s (designated Gannet Mk
I) from 1943 and on 3 April 1944 Grumman Wildcats and Hellcats led
Fairey Barracudas in Operation Tungsten, an attempt to
sink the German battleship Tirpitz in Kaafijord, Norway.
Meanwhile, in the US, over 200 Hellcats were
modified as radar-equipped night fighters. During the F6F-3 production
run, which lasted until April 1944, Grumman had developed an improved
Hellcat, the F6F-5, which utilized a
redesigned engine cowl, new ailerons, a strengthened tail, and a
water-injection system for the engine, which added 10% to the takeoff
performance and increased its armament-carrying capabilities. The F6F-5
was first flown on 4 April 1944, and production continued through
November 1945. Over 900 more "Dash-5" Hellcats were delivered to the UK
under the Lend-Lease program under the designation
Hellcat Mk II.
The
Grumman F8F Bearcat pictured above was the last of the
single piston engine carrier-based fighters built at the Long Island
"Ironworks". Two XF8F-1 prototypes were ordered in November 1943,
and the first of these was flown on 21 August 1944. Grumman decided
once again to utilize the most powerful engine available at the
time, the Pratt & Whitney R-2800 Double Wasp - the same engine that
had powered both their single engine F6F Hellcat and twin motor
Tigercat designs. This time, the engine was fitted to the smallest,
lightest airframe that could be built. This resulted in a highly
manoeuvrable, fast airplane with a rate of climb 30% greater than
the Hellcat.
Production of the F8F-1 began just
six months after the first flight of the prototype, and the first
airplane was delivered to the US Navy's VF-19 squadron on 21 May
1945. The Navy's order totaled 2,033 airplanes, and Grumman
contracted with General Motors to build the Bearcat under license,
with the designation F8FM-1. Only a few Bearcats had been delivered
to the Navy when the end of the war halted production. Grumman
cancelled 1,258 of its Bearcats, and General Motors cancelled its
entire order of 1,876. Production resumed after the war, and several
variants were made, including the F8F-1B, with four 20mm cannon in
place of the previously-fitted 12.7mm (0.5 inch) machine guns;
several night fighter variants (F8F-1N and F8F-2N); and a
photo-reconnaissance version (F8F-2P). Production continued until
May 1949.
At least 24 US Navy squadrons flew
the Bearcat, some until as late as 1952, after which a number of
aircraft were sold to the French Armee de l'Air for combat
operations in Indo-China. Another 129 Bearcats were sold to the Thai
Air Force.
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First flown
on 1 August 1941, the three-seat Grumman
TBF-1 Avenger torpedo-bomber
entered US Navy service just in time to participate in the Battle of
Midway in June 1942. During its World War II lifespan, the Avenger
design changed very little, and this allowed it to be built in huge
quantities. Demand for the airplane was so great that the General Motors
Company was also contracted to build it, under the designation
TBM-1, beginning in September
1942. Over 1,000
TBF/TBMs (initially called Tarpon Mk I,
and later designated Avenger Mk I)
were also used by the Royal Navy and the Royal New Zealand Air Force.
The second major variant was the TBM-3,
which featured strengthened wings to allow rockets and radar pods to be
carried. A large percentage of the TBM-3s were delivered with their
large dorsal turrets removed.
The Avenger's
torpedo-delivery capability had a huge impact on the Japanese fleet
during the war, and its rugged simplicity made it highly resistant to
enemy air defences.
Avengers took part in
Operation Meridian, the Royal Navy's largest ever air raid when 140
aircraft from the four fleet carriers "Indomitable", "Illustrious",
"Indefatigable" and "Victorious" attacked oil refineries at Palembang on
the eastern side of Sumatra on 24 January 1945. Diving from 9 000'
to 3 000', each Avenger defied intense anti-aircraft fire and barrage
balloons to release their four 500 lb bombs but all returned safely.
The TBM-3 modelled was
based aboard the USS Yorktown, sunk at Midway. |
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Although the overall theme of this
presentation was Grumman aircraft, I felt it just as important to put
each of these in the correct geographic and historic context using
landscape and other vehicles.
To begin with, the plain grass field
diorama more often used with the Joint Harrier Strike Force had palm
trees added along the back to supplement the deciduous species stuck
down at either edge as much to keep perspex from falling inward on any
models as to provide a scenic barrier.
The smaller palm trees were by
Plastruct and very kindly purchased in and brought back from Los Angeles
by my friend Paul Elliot while the larger items were from the Pegasus
injection moulded range, available in Britain but originating in
Montclair, California. The Pegasus palm tree set was provided with
bases while the Plastruct had wire cores to their trunks and were
designed to be let into holes drilled in to scenery. As this was
not an option on a multi-role diroama I covered their exposed ends with
Plasticine which was then mounted on thick plastic card, painted brown
and covered in grass flock powder.
The Pegasus palm trees also had
flexible trunks although the denser and heavier foliage meant that they
still had a tendency to topple over and were thus given an additional wider plastic
card sub-base - weighed down with Plasticine and similarly painted and
grassed over - to help keep them upright.
The gapping of both types of palm tree along the back
edge of the diorama was partly determined by the presence in one corner
of the hut and shelter from the Airfix Jungle Outpost kit. This
includes mules and Japanese soldiers - saved for future use on other
projects - but in this instance I just made use of the oil drums,
packing cases and the woven rattan structures which seemed as
appropriate to a tropical island as they would have been to a sweltering
Burmese jungle. The hut and shelter were both given an overall
coat of matt black to begin with (and before the two roof sections went
on the stilted hut) before I gave the exteriors a coat of wood brown and
a dry brushing of green to represent growths of slightly rotten mould.
Had I been able to source a suitably scaled Stars and
Stripes I could have added a flag pole to the hut and had my Revell US
Marines run up the colours in the manner of Joe Rosenthal's famous
picture of Mount Suribachi on Iwo Jima but instead I put them to more
practical purposes: unloading a tracked LVT4 while a wheeled DUKW also approached with more supplies offloaded from a ship moored in
the atoll's lagoon.
While the NCOs waving at each other
from the packing cases and the balcony of the hut were as supplied in
the box, the remaining leathernecks handled their loads much more easily
when their guns had been removed with a sharp knife. |
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The LVT4 was a development of the
LVT1 designed for the US Marine Corps in 1940 which in turn was based on
the Alligator, designed by Donald Roebling in 1935 as a civilian rescue
vehicle able to reach swampy areas inaccessible to both boats and cars.
In 1937 an improved, faster version of the
Alligator appeared in an article in "Life" magazine which caught the eye
of USMC planners developing the amphibious warfare doctrines of Lt Col
Earl Hancock "Pete" Ellis. As a result, Donald Roebling was
approached to design a more seaworthy machine ultimately known as the
Landing Vehicle Tracked (LVT).
The first 200 LVTs were built in Dunedin, Florida
by Food Machinery Corporation (FMC) who had made some parts for the
Alligators as well as insecticide spray pumps and other farm equipment.
Eventually FMC also made LVTs at Lakeland, Florida as well as Riverside
and San Jose in California, but although the Riverside plant was erected
by Roebling Construction the very patriotic Donald Roebling waived any
other royalties for the use of his invention by the Allies.
However, FMC later evolved into United Defence, now a part of BAe
Systems Land and Armaments.
The original LVT could carry 18 men or 4 500 lb of
cargo ashore at 12 mph but its tracks and suspension proved
unreliable on hard ground. Fitted with new torsilastic suspension
however, the LVT2 with a power train taken from the Stuart light tank
proved its worth at the battle of Tarawa in June 1942, delivering combat
troops to beaches made inaccessible to boats by coral reefs.
Nevertheless, only 35 of 125 LVTs fielded were
serviceable at the end of the struggle and the need for armour and fire
support in an opposed landing became apparent. As a result the
USMC added engines and turrets from Stuart light tanks to create the
fire support (LVT(A)-1) with a 37mm gun and Howitzer Motor
Carriage (LVT(A)-4) amphibious fighting vehicles. The latter's
75mm gun proved highly effective against Japanese fortifications
although machine guns were later added to suppress infantry attacks to
the open topped vehicle.
Both "Amtanks" were used inland from the beaches
in the Marianas campaigns although of the 18 621 LVTs were built during
World War II the more lightly armoured LVT4, as depicted in the diorama
model, was the most prolific with 8351 units delivered. This
version had the engine relocated to the front of the vehicle, allowing
the rear to contain an open well - capable of holding up to 30 men or a
light vehicle - behind a ramp for ease of exit.
Over 1 000 LVTs took part in the battle for
Okinawa, by which time the LVT4 had been used by British, US and
Canadian forces to cross such rivers as the Schelt, Rhine and Po in
Europe. The LVT4s supplied to the British army were known as
Buffalos and used by the 79th Armoured Division were armed with a
forward facing 20mm Polsten Cannon and 0.30 calibre Browning machine
guns on either side.
Indeed, had Japan not surrendered in September
1945, the 79th Armoured Division's design of flame throwing "Sea
Serpent" LVT would have been deployed in amphibious assaults on the home
islands although the American built LVT-3 "Bushmaster" with rear ramp
and engines in side sponsons was used in the Okinawa landings.
US supplied LVTs finally saw action with the
French army in Indo China and during the 1956 Suez Crisis. |
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The DUKW meanwhile was essentially an
amphibious version of the General Motors Corporation 2 1/2 ton 6 x
6 truck, the fuel tanker version of which was seen earlier in this
article with the Grumman Hellcat. Capable of carrying 25 troops,
12 loaded litters or 5 000 lb of cargo through moderate sea or surf at 6
knots, the DUKW could itself be carried on the davits or deck of a ship.
The first British use of the DUKW came during the
invasion of Sicily when 230 amphibians of the Royal Army Service Corps
companies attached to the 8th Army carried stores and anti-tank guns.
Later, the 50 mph DUKWs took part in landings at Salerno and Anzio as
well as river crossings in Italy and Burma and were most famously used
to unload ships moored in the
Mulberry Harbour at Arromanches from
June 1944 and take the supplies inland to Normandy and beyond.
DUKWs continue to operate in preservation and a
number have been adapted for amphibious civilian tours of Liverpool and
London. |
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EMBANKMENT NAVAL AIR
STATION |
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For much of the
Cold War period Grumman was one of the largest corporate employers on
Long Island and its products were considered so reliable and ruggedly
built that the company was often referred to as the "Grumman Iron
Works". As well as aircraft, fire trucks such as the model
pictured above were manufactured from the 1970s to the 1990s after the
acquisition of the Howe Fire Apparatus Company
of Anderson, Indiana.
As the company
grew, it moved within New York state to Valley Stream, then Farmingdale
and finally to Bethpage with the testing and final assembly at the
6,000-acre Naval Weapons Station in Calverton, all located on Long
Island. At its peak in 1986 Grumman employed 23,000 people on Long
Island and occupied 6,000,000 square feet in structures on 105 acres it
leased from the U.S. Navy in Bethpage.
However, after
the 1994 purchase of Grumman by Northrop for $ 2.1 billion ( bettering a
$ 1.9 billion offer from Martin Marietta ) Northrop Grumman closed
almost all of its facilities on Long Island with the Bethpage plant
being converted to a residential and office complex (with its
headquarters at 1111 Stewart Avenue becoming the corporate headquarters
for Cablevision and the Calverton plant being turned into an airport
that is being developed by Riverhead, New York. A portion of the airport
property has been used for the Grumman Memorial Park. Northrop Grumman's
remaining business at the Bethpage campus is the Battle Management and
Engagement Systems Division, which employs around 2,000 people. |
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The fictional
Embankment Naval Air Station presented in this diorama however was
further north alongside the Boston & Maine Railroad, which operated in
all the New England states except Rhode Island after its foundation in
1833. The Boston & Maine Railroad also once owned the World's largest
fleet of Budd rail diesel cars but was declared bankrupt in 1970.
Switcher 114
was a 44 ton General Electric Bo-Bo built in July 1941 with the works
number 13092 and sold for spare parts to Narragansett Pier in September
1971. Introduced in 1940 and in production until 1956, the 44 ton 1 200
bhp design was devised to get round trade union demands that heavier
locomotives should still have a fireman as well as an engineer. 348
examples of this locomotive were built as well as a 45 ton military
variant with lowered cab for the European loading gauge and air
compressors relocated to running board boxes. |
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Approaching
from the other direction was Southern Pacific Railroad liveried Alco S-2
# 69. Introduced in 1940 to replace the American Locomotive Company's
earlier high-hood switchers, the 1 000 bhp S2 was a turbocharged version
of the S1 and 1 502 Alco S2s were sold to North American railroads. As
built, the S1/S2 locomotives were distinguished by Blunt trucks while
the later S3/4 featured AAR style trucks. The equivalent of the British
Railways Class 20, the Alco S2 design was both popular and
versatile, explaining its presence (supposedly) on hire to the Boston
and Maine Railroad and a long way from its more usual routes in
Louisiana, Texas, New Mexico, Arizona and California.
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The Central
Vermont Railroad operates between New London, Connecticut and points in
northern Vermont and New York State and opened between Windsor and
Burlington, Vermont in 1849. It also cooperates with the Boston & Maine
Railroad to run fast freight trains between New Haven, Connecticut and
St Albans, Vermont. The Green Mountain Route is a reference both to
Vermont's landscape and the Green Mountain Boys - led by Ethan Allen and
his family - who resisted attempts in the 1760s by the then British
province of New York to control their land. Vermont became a republic
in 1777 and joined the United States in 1791 with the term Green
Mountain Boys most recently being applied to the Vermont National Guard.
The New
York Central Railroad was formed in 1853 from ten smaller railroads and
was known from 1869 to 1914 as the New York Central and Hudson River
Railroad after merging with a line owned by Cornelius Vanderbilt.
Famous for operating the Twentieth Century Limited luxury express from
Grand Central station in New York City along the Water Level Route of
the Hudson and Mohawk valleys to Buffalo and Chicago, the New York
Central Railroad declined after World War II and merged with its rival,
the Pennsylvania Railroad, in 1968. However, the resulting Penn Central
was declared bankrupt in 1970 and became part of Conrail in 1976 |
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Following the success of the straight winged Panther - first flown on 21
November 1947 and reaching an F9F-5 variant - the 35 degree swept wing
F9F-6 Cougar first flew on 20 September 1951. In all 1 985 F9F-6 to
F9F-8 Cougars served with the US Navy until 1960 with the first examples
delivered to VF-32 in Korea in November 1951, a year after the debut of
the MiG-15 which had prompted fresh interest in swept wing fighters
despite their low speed handling issues.
Although having improved control surfaces to remedy these faults, lack
of wingtip tanks reduced the Cougar's internal fuel capacity, which was
supplemented by under wing drop tanks and in some later cases by flight
refuelling probes.
138891 was a
Grumman F9F-8 Cougar which served with VA-113, CVG-11 aboard the USS
Essex (CVA-9) during which time it was fitted with a "dishpan"
under-nose faring for the ARA-25 UHF-DF antenna. |
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Sixty examples of the F9F-6P reconnaissance Cougar were built with
cameras replacing four 20mm canon while many earlier airframes were
upgraded to the standard of new build F9F-8 fighters.
These featured an 8" fuselage stretch and new wings for better low speed
flying and fuel capacity with late production models also being able to
carry four AIM-9 Sidewinder air-to-air missiles and even nuclear bombs.
The UHF homing antenna under the nose was however retained.
A total of 110 F9F-8Ps
were also produced with an extensively modified nose carrying cameras.
They were withdrawn after 1960 to reserve squadrons. In 1962, surviving
F9F-6P and F9F-8P aircraft were re-designated RF-9F and RF-9J
respectively.
F9F-8s were withdrawn
from front line service in 1958-9 and replaced by Grumman F11F Tigers
and Vought F8U Crusaders although reserve squadrons continued using
Cougars in the 1960s and training versions did not bow out until 1974.
Partly responsible for the
design of the Cougar, earlier Panther and the Grumman Tiger of 1954 was
Massachusetts born Joseph Gleason "John" Gavin Junior who had gained a
masters degree in aero engineering from Massachusetts Institute of
Technology in 1942 before joining the US Navy to work on its earliest
jet engines. Inspired by America's pioneering aviators - and once
having travelled to Vermont just to see Charles Lindbergh land - John
Gavin became Grumman's Chief Missile and Space Engineer in 1957. |
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Introduced in 1963
the twin
engined A-6 Intruder was designed as a replacement for the single
piston-engined Douglas A-1
Skyraider . More capable than any preceding
US Navy or Marine Corps attack aircraft, it could deliver all available
air-to-ground weapons and also defend itself with the AIM-9L/M
Sidewinder air-to-air missile.
Like the Royal Navy's
equivalent
Blackburn Buccaneer, the A-6 had all weather capability at
long range.
A total of 693
production A-6s were built and over the 34 years until retirement in
1997 the Intruder served with 17 U.S. Navy and 7 U.S. Marine Corps
squadrons, some aircraft being fitted with composite wings to extend
their fatigue life. The Intruder was replaced at some reduction in
combat radius by the multirole McDonnell Douglas F/A-18
Hornet and fighter-bomber adaptations of
Grumman's own F-14 Tomcat.
158531 was an
A-6E issued brand new to VA-65 "Tiger" Squadron in August 1972,
replacing older A-6A models as part of Carrier Air Wing 7 aboard CVA-62
USS Independence. |
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The
A-6 Intruder was also
the basis for
two electronic warfare versions, the two-seat EA-6A and the EA-6B
Prowler, introduced in 1971 with seats for a pilot and three electronic
countermeasures officers. The Prowler carried up to five AN/ALQ-99 pods,
each with two transmitters for jamming enemy radar systems, and could
also gather radio intelligence on other enemy defence systems as well as
firing anti-radiation missiles.
With the
retirement of the USAF's EF-111 Raven in 1998, the EA-6B was the only
dedicated electronic warfare aircraft available to US Forces until
replaced by the McDonnell Douglas EA-18G Growler in 2009.
160432 made
its final landing as recently as 10 June 2011 as the oldest combat jet
owned by the USMC and is modelled in the markings of its entry into
service on 17 February 1977 with VMAQ-2 "The Playboys", so called because
the squadron was formed at the same time as Mr Hefner's periodical in
1955. Since then, 160432 has served all over the World including the
Persian Gulf, Bosnia and Afghanistan. |
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First flown
in December 1970, the F-14 Tomcat entered service in 1973, specifically
countering the threat of the Soviet Tupolev Tu-22M "Backfire" martime
bomber to the carrier fleet and replacing the similarly supersonic two
seat
McDonnell Douglas F-4
Phantom II
as the US Navy's air superiority and precision strike fighter.
However, as
a variable geometry aircraft, it had the advantage of relatively slow
approaches to landing on aircraft carriers with its wings swept fully
forward, and was faster than the Phantom with more sophisticated AWG-9
radar, target management avionics and weapons. As many as six
AIM-54 Hughes Phoenix long range air-to-air missiles could be carried
with six different targets being acquired and identified at once: the
first time that such capability had been available in a fighter
aircraft. The key to the success of this system was that the
AIM-54 had a fire-and forget capability due to its own onboard radar
which left the Tomcat's AWG-9 system free to track more targets or offer
target illumination to the shorter range AIM-7 Sparrow air-to-air
missile fitted with a semi-active homing seeker. |
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In the
picture above, a half-ton Hughes Phoenix is visible under the fuselage
with shorter range and AIM-7 Sparrow and heat seeking Sidewinder
air-to-air missiles under the wing.
As well as
Phoenix, Sparrow and Sidewinder missiles , the F-14 was armed with a
20mm Vulcan M-61 gun for air-to-air combat. Alternatively, missions could be flown with the
Tactical Air Reconnaissance Pod System
Grumman F-14
Tomcats are perhaps most
famous for their starring role in the 1986 Tom Cruise film "Top Gun",
based on the work of the US Navy Fighter Weapons School at Miramar,
California.
Top Gun was
set up in 1969 to stem the losses of
McDonnell Douglas F-4 Phantom IIs over Vietnam to single
engined MiG-21s and its syllabus of air combat manoeuvring skills owed
much to both the Royal Navy's Air Warfare Instructor's School at
Lossiemouth in Scotland and more specifically to its exchange graduate
Richard Stanley Lord RN, later a Brigadier General in the South African
Air Force, who always used the radio call sign "Brit 1". Soon
after Top Gun was established, a Phantom flown by one of its students
shot down a MiG-21, the first time a US Navy aircraft had succeeded in
aerial combat in two years.
The F-14B,
introduced in November 1987, incorporated new General Electric F-110
engines and from 1995 an upgrade program incorporated new digital
avionics and weapon system improvements.
The F-14D,
delivered in 1990, was a major upgrade with F-110 engines, new APG-71
radar system, Airborne Self Protection Jammer (ASPJ), Joint Tactical
Information Distribution System (JTIDS) and Infrared Search and Track (IRST).
Additionally, all F-14 variants were given night vision compatibility,
new defensive countermeasures systems and a new digital flight control
system.
As such, the
F-14 - larger and more expensive than the McDonnell Douglas F/A-18
Hornet introduced in 1983 - was to take on a much broader range of roles
before retirement from service in 2006. The combination of Martin
Marietta LANTIRN (Low Altitude Navigation and Targeting Infra-Red for
Night) and GPS equipment in one underwing store turned the Tomcat into
an all-weather precision bomber which delivered laser guided munitions
in the Balkans from 1995 and later as part of Operation Desert Fox over
Iraq.
F-14A
Tomcat 161621 is represented in this Century Wings die cast model in
the markings of VF-111 "The Sundowners" aboard CVN-70 USS Carl Vinson in
1988. VF-111 were to continue as an F-14 unit until disbandment in
1995. |
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GRUMMAN ON THE MOON |
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The idea of
visiting Earth's satellite inspired storytellers and visionaries for
millennia but was
only achieved by twelve American astronauts between 1969 and 1972.
The six Grumman
Lunar Modules - originally termed Lunar Excursion Modules by NASA and
often referred to as LEMs - that they used were all slightly different
from each other and so the left hand side of my lunar diorama was an
attempt to portray the typical equipment of an early Apollo (H-Class) Moon landing
rather than replicate a specific mission down to the last footprint in
the dust.
The LEM,
astronauts, flag, S-band antenna dish (used from Apollo 12 onwards) and
three stand-alone lunar surface experiments (out of many more actually
deployed around a central station powered by a radioactive cylinder, not
included) were
all supplied as part of a 2009 Airfix set with the overall title "One
Small Step For Man.."
This included a very impressive history on
the instruction sheet and a painting guide which reflected the thin
silver, gold and aluminium foil used to control the temperature of the
flying LEMs and protect them from micro meteorites - as opposed to the
simpler black and white scheme of early mock-ups which the first-issued
Airfix Lunar Module kits recommended as accurate.
"One
Small Step For Man.." also included astronauts with wheeled rovers and
one and two seat flying machines and a rectangular representation
of the lunar surface.
Although this
was a vast improvement on the small injection moulded circle of "Moon"
originally supplied with the 1970 vintage 1/72 scale Airfix LEM, I found
that the four (aptly enough!) vacuum formed landing pad depressions did
not quite line up with the descent stage and so some other lunar
features were improvised to represent a level, if risky landing.
In fact, due to
problems with the radar altimeter on Apollo 11's LEM,
Neil Armstrong had
to land some distance from his intended spot and with only 30 seconds of
fuel to spare. Although designated as Lunar Module Pilot (LMP),
Edwin "Buzz" Aldrin's role on Apollo 11 was that of an engineering
officer for all the modules involved. However like all LMPs he had the
skills to return the Lunar Module to orbit around the Moon had his
Commander been incapacitated.
Indeed, had "Eagle"
come to rest at more than 12 degrees from horizontal, both Neil and Buzz would have been unable to rendezvous
with the orbiting Command and Service Modules and been doomed to die on
the Moon: an eventuality for which US President Richard Nixon had
prepared a special speech.
Similarly,
although Charles "Pete" Conrad Jr was able to put Apollo 12's LEM "Intrepid" down
on the Ocean of Storms just 600 feet from the unmanned Surveyor 3
spacecraft - which had made its own automatic landing in April 1967 -
the spot designated "Pete's parking lot" had been avoided at the last
minute as being too rough. Unfortunately this had been selected as far enough
away for the LEM descent engine not to blow dust all over Surveyor 3,
which ended up coloured beige rather than white!
Before the soft
landing of the Surveyors on the Moon in the mid 1960s some scientists
believed that the lunar surface was covered in a layer of dust so thick
that a spacecraft might disappear into it. Other experts meanwhile
predicted pot holes, boulders or even a glass like slippery surface.
As a result, John Gavin and his team developed a computer programme
allied to a quarter scale model lunar lander and evaluated 400 possible
landing surfaces.
As history records
however, the lunar seas were only covered with enough thickness of dust
to support a boot print and talcum powder blown and brushed away from under the Airfix LEM
descent engine bell was used to represent a slightly hesitant landing made on
terrain rougher than expected.
Blending these
additional terrain features into the existing vacuum formed moonscape
with spray paint also led to the formation of some features akin to lava
flows. However, although the lunar "maria" have traditionally been
ascribed to outpourings of magma from the core of the young Moon, more
recent research has uncovered the reason why there are no active lunar
volcanoes despite the frequent "Moonquakes" detected by instruments left
by the Apollo astronauts. Put simply, titanium rich rocks carried
to the core from the surface during the Moon's turbulent early
geological periods - as replicated by Dutch and Scottish scientists
using electric currents and a press - made the reserves of liquid magma
at the centre of the celestial body too dense to reach the surface.
Furthermore
Apollo 15's LEM "Falcon" came to rest on the plain between the Lunar
Appenines and Hadley Rille at an 11 degree angle due to one foot being
in a depression. However, what David R. Scott and James B. Irwin
described as their "Portable Leaning Tower of Pisa" was able to deploy
the first manned Lunar Rover and then have the ascent stage blast off to join the
Command Module
"Endeavour" in orbit for the journey home, having landed with more than
100 seconds of hover time fuel remaining in the Descent Stage tanks.
Having
outlasted its usefulness, the ascent stage of each Grumman Lunar Module
would have been jettisoned either to crash into the Moon or orbit the
Sun. |
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In all cases,
the legs of the descent stage of the Grumman Lunar Module began their
journey to the Moon folded to fit inside the third stage casing of the
Apollo Saturn V launch vehicle underneath the combined Command and
Service Modules (CSM). After Trans Lunar Injection, the CSM would separate from the Saturn V Third Stage, turn round
and dock with the LM, using its small thruster rockets to separate all three
Modules from the last part of the launch vehicle. Once in Lunar
orbit,
explosive bolts could then be actuated to spring the LM legs into
landing configuration and lock them in to place.
To illustrate
this stage of the mission, I added a Micro Machines CSM/LM combination
to one upper wall of the diorama using superglue to adhere the Service
Module rocket engine bell. Although small and relatively crude
compared to the 1/72 scale Dragon Wings die cast equivalent released in
2011, this model fitted the box without dominating the scene and was
much less expensive!
One detail
missing from most model depictions of a complete LM in flight however
are the three foot long probes extending from three of the landing pads. These cut the
descent engine on contact with the lunar surface, thus committing the
pilot to landing. Any manoeuvres to avoid
rough ground would therefore have to be carried out relatively high
above the Moon and with the engine blowing dust over the terrain.
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Touchdown
techniques and opportunities aside however, Project Apollo was able to
send back to Earth a rich legacy of samples and images, not least
those from later, more ambitious Moon walks and drives showing the LEM small and
glittering against the endless black of
space and the rolling lunar hills with their shades of brown and grey
seen close up through a vacuum rather than distantly refracted through
the atmosphere of Earth.
It was this
sense of what Apollo 11 Lunar Module pilot Buzz Aldrin called "magnificent desolation" that I wanted
to replicate in a diorama rather than just displaying a Lunar Module as
the literal height of Grumman's achievement.
Indeed, as can be seen in this
website's Cosmic
Heroes article on the pioneering years of manned
spaceflight, I had already made one attempt to model the Moon using the
Airfix Lunar Module but to appreciate Grumman's achievement in
building Planet Earth's first true space ship - that could only operate
in a vacuum - it is worth considering its planned antecedents and
considering the question "Why go to the Moon?".
For
Oliver Cromwell's brother in law Bishop John Wilkins
the Earth's satellite was a possible trading partner as he described in his "Discourse
Concerning a New World and Another Planet" of 1638.
Wilkins, who experimented with flying
machines in the gardens of Wadham College, Oxford around 1654, was
convinced the Moon was inhabited by a race known as the Selenites and
planned to reach them in a wooden chariot powered by springs, gunpowder
and feathered wings - just as Drake and Raleigh had set out across
uncharted oceans a century earlier. Sadly for the inventor of the airgun,
mileage recorder and prototype pneumatic tyre, the next 30 years saw the
discovery of vacuum and other phenomenon which would make such a journey
impossible with the technology of the time.
Indeed, intelligent Selenites also featured in H.G.
Well's 1901 novel "The First Men in the Moon", their civilization being
discovered by both a curious scientist and a businessman eager to make
money on Earth from abundant Lunar gold. Cavor and Bedford's spacecraft
was powered by gravity-defying Cavorite, a fictional material despite
Wells reading a serious research paper by John Henry Poynting into the
subject which was published in "Nature" in 1900.
French science fiction writer Jules Verne meanwhile came a little closer to the eventual reality of Project
Apollo. In his novels "From the Earth to the Moon" and "Around the
Moon", written just after the American Civil War, three astronauts are
launched toward the Moon in a vehicle fired from a giant cannon named Columbiad
located at Stone's Hill in Florida. Their journey took
five days, during which time the men encountered weightlessness, and due
to a close encounter with the gravity field of an asteroid they did not
land on the Moon but viewed its barren surface with opera glasses before
passing into the cold and darkness of the far side. Finding
themselves drifting back towards Earth - on what would later be called a
Free Return Trajectory - the crew of two Americans and a
Frenchman then tried to regain the Moon by firing the rockets that they
had planned to use to cushion their vertical tail-first landing.
However, this rocket burn has the opposite effect and the projectile
fell back to Earth like a bright star, landing in the Pacific Ocean
where the crew miraculously survived and are were picked up by the crew of a
ship.
As it turned out, Stone's Hill is relatively close to
Cape Canaveral and the Apollo 11 Command Module - named "Columbia" -
took three days to reach the Moon, which it then orbited just as Apollo
8 had done a few months earlier. In 1970, Apollo 13 used its LEM descent
engine for course correction during a perilous return to Earth and all
Apollo Command Modules splashed down in the Pacific, albeit having
deployed parachutes to slow their descent!
Despite being impractical for manned use due to the
lethal acceleration of the projectile, a Columbiad style space cannon even appeared as late
as 1936 in the H.G. Wells inspired film "Things to Come", which ended
with a meditation on the nature of human progress and the quest for
knowledge following another attempt to reach the Moon.
"And if we’re no more than animals, we must snatch
each little scrap of happiness, and live, and suffer, and pass,
mattering no more than all the other animals do or have done. It is
this, or that. All the universe or nothing. Which shall it be?"
Or as David Scott of Apollo 15 said on the edge of
Hadley Rille:
"I realise that there's a fundamental truth to our
nature: man must explore."
These words were a definite development on "Because
it's there" - the reason George Mallory gave for wanting to climb Mount
Everest in 1924 - and also on the We-do-it-because-we-can attitude of Jules
Verne's Moon voyagers. But H.G. Wells had also foreseen a second World
War and from this came both technological and political developments
which would ultimately make Moon landings a reality. |
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Thanks to the theoretical work of
Konstantin Tsiolkovsky (1857-1935) - who first conceived of multi-stage
rockets, space stations and air locks among other ideas - and the
practical invention of the liquid fuelled rocket motor by American
Robert H. Goddard in 1926, the components of prospective space travel
were already in place by 1944 when the first Nazi V-2 rocket bombs began
to fall on England. A year later - with both
the USSR and USA eagerly collecting German rocket scientists and
technology for their own research programmes - the first atomic bombs
were detonated and by 1950 the two ideologically motivated superpowers
had settled into Cold War: both restrained by mutually assured destruction
through stockpiles of nuclear weapons yet eager to steal a march on each
other wherever possible.
In this context, both the Moon - and space in
general - was seen as the new high ground and spaceships an extension of
the air power used to devastating effect during World War II. Both
USA and USSR built nuclear armed intercontinental missiles derived from
the German V2 and - although ultimately outlawed by international treaty
- a satellite appeared as the ultimate strategic bomber, able to visit destruction
anywhere on Earth.
The effect of the revelation of Sputnik 1 in 1957
on America is more fully explored in
Cosmic Heroes but seven years
earlier the George Pal film "Destination Moon" included the political and
technical developments of the time in making a surprisingly accurate
forecast of a Lunar landing.
The Technicolor feature portrayed four astronauts
blasting off from New Mexico (then real-life home of the White Sands
missile proving ground) in a V-2 shaped rocket powered by a nuclear
engine and landing on its finned tail. Like the Columbiad cannon
imagined by Jules Verne, this space ship was privately built - this time
by the combined efforts of the American aircraft industry, experiencing
something of a renaissance due to the
Korean War - and the
astronauts claimed the Moon for the USA - an appropriation later also made
illegal by international treaty. Indeed, it was only at the last
minute before the launch of Apollo XI that the US government insisted
that Armstrong and Aldrin plant the Stars and Stripes in the dust of the
Moon rather than the light blue flag of the United Nations as proposed
by NASA.
In its plot twist of the engine using more fuel
than expected and the ship having to be lightened to return to Earth,
"Destination Moon" paid homage to Fritz Lang's 1929 feature "Woman in
the Moon" which also introduced the concept of multi-stage rockets and a
countdown to cinema audiences. "Woman in the Moon" itself looked
back to H.G. Well's novel "The First Men in the Moon" as the German crew
voyaged in search of gold - while in "Destination Moon" the American
astronauts discover uranium.
In both cases however the landing vehicles were
streamlined - due to having to negotiate the Earth's atmosphere - and left
the Moon complete with the implied possibility of a future mission. |
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More practical evidence for the militarisation of the
Moon came with a number of proposals around the time that America's
National Aeronautics and Space Administration (NASA) became operational
1 October 1958, co-ordinating efforts to launch Explorer and Vanguard
satellites that had previously been led by the US Army and Navy.
In May 1958 the US Air Force sponsored a study into
the possibility of detonating a small atomic bomb on the Moon so that
the explosion and dust cloud would be visible from Earth. This was
in response to a widely publicised - and partly true - rumour that the
USSR was planning to do the same thing to commemorate the 40th
anniversary of its October Revolution. However, Project A119 - as
it was known - was cancelled in January 1959 due to worries about the
reliability of the launch vehicle, World opinion rather than just
American morale and the risk that the missile could miss the Moon and
fall back uncontrolled to Earth.
Even if Project A119 had succeeded however, it
would have prejudiced any scientific study of the Moon's natural
radiation and also interfered with Lunex, another US Air Force project
of 1958, which envisaged sending a three man spacecraft (pictured above)
directly from Earth to the Moon in 1967 prior to the construction of a
21 man permanent base there.
Interestingly, although drawings show a blended
wing crew return vehicle not totally unlike the Space Shuttle orbiter of
the 1980s, the whole assembly landing on the Moon would have made first
contact with a descent stage fitted with four landing pads which would
in turn have provided a firing base for an ascent stage to propel the
aerodynamic "lifting body" off the Lunar surface and towards Earth.
Even allowing for the two lowest stages of the
vehicle to be sacrificed in order to return the crew to an
aircraft-style landing on Earth however, the Lunex lander would have
been heavier - and thus required a more powerful rocket to launch from
Earth - than the eventual Apollo approach of just putting manned
descent and ascent stages on the Moon and leaving the crew return
portion in Lunar orbit: albeit for potentially more difficult separation
and docking manoeuvres.
The Lunex planners also identified the problem of
an aerodynamic crew return vehicle either burning up on re-entry to the
Earth's atmosphere or skipping off it - a problem solved by heat
resistant tiles on the Space Shuttle and variable geometry wings on
Scaled Composites SpaceShipOne - and more immediately the unknown
challenges of making a rocket-cushioned tail-first landing and then
launching a spacecraft off the Moon with no external back up.
Meanwhile, on 8 June 1959, the Army Ballistic
Missile Agency presented the US Department of the Army a report entitled
"Project
Horizon, A U.S. Army Study for the Establishment of a Lunar
Military Outpost" stating:
"The lunar outpost is required to develop and protect
potential United States interests on the moon; to
develop techniques in moon-based surveillance of the
earth and space, in communications relay, and in
operations on the surface of the moon; to serve as a
base for exploration of the moon, for further
exploration into space and for military operations on
the moon if required; and to support scientific
investigations on the moon."
Project Horizon envisioned a first lunar landing
by two soldier astronauts in April 1965 with a twelve soldier base -
complete with Davy Crockett missiles and Claymore mines to deter an
overland Soviet attack - operational in December 1966.
Before the actual landing however, 147 Saturn 1
rockets would have contributed to the construction of a space station in
Earth orbit, near which a lunar shuttle craft would also be built from
components flown up from Earth. The 16 seat shuttle craft would
then move back and forth to the Lunar surface as required - sacrificing
a descent stage each time - with separate vehicles connecting the low
Earth orbit space station with Earth itself - much as was to be depicted
in Stanley Kubrick's 1968 film "2001: A Space Odyssey" and had already
been suggested earlier in the 1950s by Wernher von Braun in a series of
articles published in "Collier's" magazine.
Incidentally, the Project Horizon space station
and Moon base would have been constructed from used cylindrical fuel
tanks much as the NASA Skylab of the 1970s was converted from the second
stage of a Saturn V rocket. |
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Although neither Projects Lunex or
Horizon progressed beyond the feasibility study stage, their respective
Direct Ascent and Earth Orbit Rendezvous formats were considered by NASA
for Project Apollo as a follow up to Project Mercury, which competed
with the Soviet Vostock missions in placing a single astronaut at a time
in low Earth orbit. In fact the name Apollo
- originally the Greek god of light, music and the Sun - was chosen by
NASA manager Abe Silverstein as early as 1960: before either Yuri
Gagarin or Alan Shepherd had flown in space or President John F. Kennedy
declared America's intention of putting a man on the Moon by the end of
the decade. After reading a book on mythology, Silverman thought
that the image of Apollo riding his chariot across the Sun was
appropriate to the grand scale of the proposed program.
Also considered was the concept of Lunar Surface
Rendezvous, in which an automated craft laden with propellant would land
on the Moon first to refuel a manned vehicle arriving either from Earth
orbit or directly from Earth itself.
This idea of supplies being
provided ahead of a manned landing has also been suggested as one
component of a mission to Mars while in 1962 a symposium of the
Institute of Aerospace Sciences did briefly think about a shelter full
of food and oxygen being sent ahead of a one-man one-way mission to the
Moon. This would have enabled the United States to rapidly claim
the glory of beating the Russians to the lunar surface and kept the
astronaut in question alive until he could be rescued by a more
technically complex Apollo mission. The idea was not considered
for long, but it did provide the basis for the novel "The Pilgrim
Project" by Hank Searls which was filmed by Robert Altman in 1968 as
"Countdown" with James Caan in the leading role.
On 11 June 1962 however, the eventual Lunar Orbital
Rendezvous (LOR) format - first suggested by the British Interplanetary
Society in 1939 - was chosen and definitive work on both the Saturn V
launch vehicle and the Lunar Excursion Module could begin. By this
time though, the Command and Service Modules had already been planned
with other mission formats in mind, causing the Service Module main
engine to be made powerful enough to lift the combined CSM off the Moon
and heavier than was ultimately needed.
The LOR format was also selected by the USSR for its
attempts to land just one cosmonaut on the Moon's surface using the N-1
booster, on which work was finally abandoned in the 1970s after a series
of test launches ended with mid-air explosions. |
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The Grumman Aircraft
Engineering Corporation was chosen to build the Apollo Lunar Module in
November 1962 ahead of eight other American firms which had submitted a
60 page proposal to NASA. Main sub contractors for the project
were further identified as Bell Aerosystems for the ascent engine,
Hamilton Standard for environmental controls, Marquardt for the reaction
control system and Rocketdyne for the descent engine.
However, the
latter was dropped in 1965 in favour of a hypergolic engine (using
chemical propellants which would react to provide thrust without the
presence of oxygen) developed by Space Technology Laboratories (TRW).
Bell Aerosystems also designed and built five Lunar Landing Research and
Training Vehicle, somewhat similar to the British "Flying Bedstead" of
the 1950s but with one gimbal mounted vertical jet engine capable of
supporting 5/6 of the weight of the craft and hydrogen peroxide
thrusters to represent attitude control. Of these unstable
vehicles three crashed although thanks to rocket powered ejection seats
all of the pilots - including Neil Armstrong - survived.
Grumman project leaders Thomas J. Kelly and
John Gavin meanwhile were faced with the challenge of making their
Lunar Module sufficiently light yet practical and reliable and as such
four landing legs were specified as being a compromise between the
lightweight minimum of three and the most stable yet heavy and
complicated approach of five.
Similarly, the Ascent Stage
developed from a pure cone shape to something akin to a helicopter
cockpit - pictured above - with seats, large windows for the best view of the lunar surface
and a second docking port so that the crew could actively dock with the CSM. However, seats were deleted and the second docking port
replaced by a simple hatch to save weight, making the two crew stand up
for LOR while the CSM pilot had full responsibility for docking.
In the same way, two small triangular windows replaced the
Westland Dragonfly
type glazing and batteries rather than CSM type fuel cells provided
electrical power.
This minimalist design philosophy
thus makes an interesting comparison with the two-person lander proposed
by the American
Golden Spike Company
in 2012 and designed by Northrop Grumman which has an offset transparent
ball-type crew compartment and four landing legs. |
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Although the Grumman Lunar Module was to become
the most reliable craft of the Apollo program, development delays and
the resolution of 14 000 design imperfections
initially held back the progress of the whole US Moon effort with Apollo
5, the first unmanned flight of LM-1 in Earth orbit, being planned for
April 1967 not lifting off aboard a Saturn 1B until 22 January 1968.
A second unmanned test flight - of LM-2 -
was originally planned but cancelled as unnecessary and LM-3 not being
ready by December 1968 prompted NASA to send Apollo 8 around the Moon
boosted by a Saturn V rocket as much as any rumours of a similar Soviet
mission. The first manned Lunar Module
flight was therefore Apollo 9 on 3 March 1969. However, as was the
case with LM-4, carried to the Moon on Apollo 10, the ascent stage of
LM-3 would have been too heavy to lift off from the lunar surface.
For this reason both Apollos 9 and 10 were incremental test flights,
LM-4 being short-fuelled to save weight during a lunar orbital flight
separated from the CSM. In fact LM-5 "Eagle"
was only delivered to NASA just in time for the planned launch date of
Apollo 11 and although sufficiently light for the landing mission was
non-standard to LMs 6 to 9. Due to this, and the unique deployment
of the more easily set up Early Apollo Surface Experiments Package (EASEP)
rather than the Apollo Lunar Surface Experiments Package (ALSEP) of
Apollos 12-17, Apollo 11 is considered as a G-Class mission rather than
the H-Class of Apollos 12-14 and the J-Class designation of Apollos
15-17.
Having proved its worth on Apollo missions 9 to 14 the basic Grumman Lunar Module design was enhanced for the
final three J-Class missions of Apollo 15 -17. Indeed, LM-7
"Aquarius" was to work well beyond its design envelope, acting as a
lifeboat for the successful return of Apollo 13 and earning John Gavin a
Distinguished Public Service Medal for his part in managing the crisis.
To allow for a greater landing payload - including a Lunar Rover - and surface stay
times of up to 75 hours, the Descent Stage fuel tanks were
enlarged and engine power was improved by the addition of a
10 inch extension to the bell. A waste storage tank was also
added to the Descent Stage, with plumbing from the Ascent
Stage.
Hover times and landing weights were
also maximized by using the Service Module engine to perform
the initial Descent Orbit Insertion burn before the LM
separated from the CSM, a practice begun on Apollo 14. The
LM then began its powered descent with a full load of
descent stage fuel. This method allowed the final three
Apollo landings to be made with enough reserve fuel for over
a minute of hover time.
Had American lunar exploration
continued and developed beyond Apollo 17, the Grumman LM
would have been further developed into a three astronaut
crew delivery taxi and unmanned delivery truck for a
proposed Moonbase.
The table below should be cross
referenced with the Apollo mission table in
Cosmic
Heroes in terms of Grumman Lunar Module
Descent Stage locations.
|
SERIAL |
NAME |
LAUNCH |
USE |
NOTES |
|
LM-1 |
|
22
January 1968 |
Apollo 5 |
Re-entered
atmosphere. Only LM ever flown on Saturn 1B
rather than Saturn V. |
|
LM-2 |
Intended for
second - cancelled - unmanned flight. On
display at National Air & Space Museum Washington DC |
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LM-3 |
Spider |
3
March 1969 |
Apollo 9 |
Re-entered atmosphere |
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LM-4 |
Snoopy |
18
May 1969 |
Apollo 10 |
Descent Stage
impacted on Moon, Ascent Stage - left in Solar orbit
- is the only surviving Grumman Lunar Module
component to have flown. |
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LM-5 |
Eagle |
16
July 1969 |
Apollo 11 |
Ascent Stage left
in decaying Lunar Orbit. Exact point of impact
on Moon unknown. |
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LM-6 |
Intrepid |
14
November 1969 |
Apollo 12 |
Ascent Stage
deliberately crashed into Moon |
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LM-7 |
Aquarius |
11
April 1970 |
Apollo 13 |
Re-entered atmosphere |
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LM-8 |
Antares |
31
January 1971 |
Apollo 14 |
Ascent Stage
deliberately crashed into Moon |
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LM-9 |
Originally
allocated to Apollo 15 as the last H-Class mission
but replaced by enhanced LM-10 when Apollo 15 became
the first J-Class mission. On display at
Kennedy Space Center |
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LM-10 |
Falcon |
26
July 1971 |
Apollo 15 |
Ascent Stage
deliberately crashed into Moon |
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LM-11 |
Orion |
16
April 1972 |
Apollo 16 |
Ascent Stage left
in decaying Lunar Orbit. Exact point of impact
on Moon unknown. |
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LM-12 |
Challenger |
7
December 1972 |
Apollo 17 |
Ascent Stage
deliberately crashed into Moon |
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LM-13 |
Originally
intended for cancelled Apollo 18. On display
at Cradle of Aviation Museum, Long Island NY.
Also used for HBO's 1998 series "From Earth to Moon" |
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LM-14 |
Originally
intended for cancelled Apollo 19. Never
completed, parts apparently incorporated in LM
displayed at Franklin Institute, Philadelphia. |
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LM-15 |
Considered for
Apollo Telescope Mount project but scrapped without
having flown |
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A MODEL LUNAR FUTURE |
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Unlike
a field or aerodrome on Earth, few vehicles have ever arrived on the
Moon, none have either completely left or left complete and no
footprints or tracks will ever erode due to lack of any wind or rain.
As such, a lunar diorama even with an Apollo mission in progress has
only limited interest due to the small realistic possibility of change.
As such, I
decided to give the crater floor on the right hand side of the diorama -
enlarged beyond the Airfix vac-formed base - to a possible future
spacecraft that also harked back to both the rounded Soviet style
of spacecraft construction and to some of the seriously proposed but unfulfilled
lunar expeditions described above.
Just as the
specific provenance of this "fantasy" model rocket is currently unknown
( I acquired it already built and added paint and super-detailing ) I
deliberately did not apply any national or corporate markings as
from the viewpoint of 2012 the next manned Moon landing may not be
American or even be financed by a national government.
In practical
terms though, the future lander - like the Grumman Apollo LEM - will
have no need of streamlining if it is to operate solely on the Moon or
in the vacuum of space and could similarly feature ladders, handrails, access
platforms incorporating steering jets, solar panels and even a cargo
pannier box for small wheeled surface vehicles or reaction-powered
flying machines.
To minimise
mass - just as the LEM was built from thin metal foil - the new
spacecraft could comprise just of a framework holding together spherical
fuel and oxidant tanks with a multi-nozzle rocket engine below and a
crew module on top.
This came
fitted with its own emergency escape motor as built on the model and I
added the air lock to avoid the astronauts having to depressurise the
module for every extra-vehicular activity: a luxury not available on the
Grumman LEM. The future lander also has larger landing pads and
hydraulic legs to allow it to right itself for lift off if it lands on
uneven ground. |
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However, just as the Grumman LEM
worked at the limit of 1960s technology to facilitate a 75 hour stay by
two astronauts, so such a substantial re-usable vehicle as the modelled
Future Lander would only be justified by a more regular human presence
on the Moon than two Apollo missions a year - and most probably by a
Moon base of some description.
Unlike the habitats proposed under either Projects Horizon or Lunex
however, the lack of ideological superpower rivals in the 21st Century
would mean that such a base would most likely be civilian and scientific
in nature and perhaps the result of international co-operation.
Rather than trading with Selenites, the next wave of
lunar explorers could well be surveying much more of the Moon and in
more depth than the Apollo astronauts while astronomers could use the
airless natural satellite to search for extra-solar planets and
environmental scientists look back at climate change on Earth.
Similarly, a radio telescope on the side of the Moon away from Earth
would be shielded from the planet's radar and broadcasting, thus
enhancing the search for extra-terrestrial intelligence and other
electromagnetic phenomenon.
As an orbiting laboratory too, the
Moon has the advantage over current space stations of its own gravity -
albeit 1/6 that of Earth - in keeping astronauts in better health during
extended periods away from Earth. Likewise, due to being further
away from Earth and minutely drifting away, the Moon would be unaffected
by upper atmosphere drag compared to a low Earth orbit space station and
have resources of its own to offer in terms of land area on which to
spread photo-voltaic panels, craters and pits for nuclear power plants
and a crust rich in both metal ores and Helium 3 isotopes for fusion
reactions. More crucially,
unmanned spacecraft such as Lunar Reconnaissance Orbiter and LCROSS sent
to the Moon in the 21st Century have discovered signs of of water ice,
nitrogen and sulphur in regions shaded from sunlight. In turn,
this makes more likely a Moon base that would not need to have all its
oxygen and water expensively brought up from Earth but could grow its
own food on hydroponic farms: assisting such activities as refuelling
spacecraft (which could also be lofted to orbit on electromagnetic
catapults) and even building parts for new ones, perhaps for expeditions
to Mars and beyond. |
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Obviously the infrastructure to
achieve all the scientific goals mentioned above would be expensive but
in the long term a more efficient financial investment in the
exploration of space than the Apollo missions.
In the graphic above - taken from the
1970 Brooke Bond Picture Card album "The Race into Space" - illustrates
a sequence of travel from Earth to Moon starting with a winged space
shuttle flying to a space station in low Earth orbit.
This of course was a reality from
1981 to 2011 with NASA's Space Transportation System helping to build
the International Space Station, which can still be accessed in 2012 by
Soyuz, Jules Verne and Progress spacecraft launched atop conventional
step rockets.
Unfortunately the American Space
Shuttle orbiter - launched vertically with uncontrollable solid boosters
rather than from a winged mother ship as once planned - suffered two
fatal losses during its 30 year career and although dubbed as reusable
required expensive refurbishment after every mission which in turn
slowed the number of launches scheduled for each year.
As a future alternative, large cargo payloads may
still be launched by expendable rockets with a winged crew return
vehicle being developed based on the Virgin Galactic SpaceShipTwo,
designed to be launched at altitude from a White Knight jet propelled
carrier aircraft. Indeed, at some point space tourism may even
extend as far as the Moon.
Interestingly, the 1970 graphic shows the next stage in the journey
being from the low Earth Orbit space station to another one in
geosynchronous orbit - close to the position of modern communication
satellites as described in
The Telstar Story. However,
more recent research into carbon fibre nanotubes - lighter yet stronger
than any other man made material - has raised the possibility of a
satellite in geosynchronous orbit being linked to the Earth's surface by
cable and that cable in turn supporting an elevator vehicle which could
take astronauts and cargo into space without any need for chemical
rockets. Leaving this concept
aside though, a space transfer vehicle ( or "Space Tug") of some sort
would still be needed to link space stations in orbit around the Earth
with each other and with the envisaged nuclear engined vehicle
constantly travelling from Earth to Lunar orbit and back again.
Although research into a nuclear
powered ROVER spaceship was mentioned in the same speech by
US President John F.
Kennedy in which he announced the goal of sending men to
the Moon, more recent unmanned probes have been powered by a stream of
ions instead of hot gases and this technology could be used on a larger
scale for an Earth-Moon shuttle, moving at a constant velocity and
perhaps cutting down the three days that it took the Apollo spacecraft
to reach the Moon. Indeed, the
smaller space transfer vehicles themselves might have ion engines
although chemical rockets would be needed for more responsive
acceleration and braking and for landing on and taking off from the Moon
near any permanent base or other location.
It is for this kind of transfer work in the vacuum of
space that I would see my "fantasy rocket" being used, perhaps even
picking up loads from the lunar surface and flying them to an orbiting
station or even docking directly to an ion powered shuttle for the
journey to Earth orbit where it could undock and proceed to a
geosynchronous space station (possibly to unload to a carbon nanotube
based elevator) or a low Earth orbit station, thereby minimising the
difficult and dangerous transfer of payloads from one space vehicle to
another.
Once emptied and refilled with an
outbound load, the lunar-landing-capable space tug would then hitch a
ride with another nuclear powered spacecraft back to Lunar Orbit and the
Moonbase. During its piggy-back Moon-Earth-Moon travels, the space
tug could be maintained in zero gravity by astronauts tethered to its
structure or yellow grab rails or if gravity and/or a breathable
atmosphere were needed to make repairs such work could be done in a
hangar building on the Moon - perhaps even a temporary inflatable one
that could be moved to a location best suited to the job. |
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Indeed, had room on my diorama
permitted I would have liked to have built a model Moon base although in
its earliest and most achievable guise this would have consisted of
little more than a door in a turret leading down to some cylindrical
dwellings buried to protect them from solar radiation and meteorites, as
once again envisaged by Brooke Bond in 1970 and illustrated above.
In contrast, the type of lunar city depicted by Stanley Kubrick in
"2001: A Space Odyssey" would be much further into the future and the
science fiction staple of geodesic domes easier to erect but much more
vulnerable. Instead I hinted at buried
cylinders by equipping the lunar rover supplied by Airfix with a
bulldozer blade (made from part of a yoghurt pot) as well as solar
panels to recharge its batteries and surrounded it with the kind of
flying "chariots" also expected for future missions.
Although not yet tested, these vehicles be the
equivalent of helicopters on Earth and would let astronauts travel long
distances without inflicting their boot and tyre marks on the otherwise
pristine lunar surface that would be prized by geologists. They
could also rendezvous with a landed space tug for guidance, refuelling
or rescue missions or even to help build a network of lattice beacon
towers across the lunar surface. These would not only guide any
lost astronauts by radio signals and as landmarks but relay signals from
one base to another, thus avoiding the need for navigation satellites
cluttering the orbit of the Moon. |
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