Play Video
1
The Gama Goat {S4 Ep.1-2]
The Gama Goat {S4 Ep.1-2]
::2011/01/25::
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2
Gama goat   MARC P
Gama goat MARC P
::2010/05/23::
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3
The Gama Goat {S4 Ep.1-3]
The Gama Goat {S4 Ep.1-3]
::2011/01/25::
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4
Modified Amphibious Gama Goat
Modified Amphibious Gama Goat
::2010/07/17::
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5
Gama Goat
Gama Goat
::2009/02/18::
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6
The Gama Goat {S4 Ep.1-1]
The Gama Goat {S4 Ep.1-1]
::2011/01/25::
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7
Offroad with the Gama Goat 01
Offroad with the Gama Goat 01
::2010/05/02::
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8
CORVAIR POWERED MILITARY GAMMA GOAT ALL TERRAIN VEHICLE
CORVAIR POWERED MILITARY GAMMA GOAT ALL TERRAIN VEHICLE
::2014/02/11::
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9
GAMA GOAT 6x6Truck cargo M 561
GAMA GOAT 6x6Truck cargo M 561
::2014/09/16::
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10
Tamiya U.S.M561 Gama Goat Video Build
Tamiya U.S.M561 Gama Goat Video Build
::2013/11/24::
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11
Gama Goat Swims and Drives
Gama Goat Swims and Drives
::2010/09/13::
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12
gama goat Video#3 Gama goat in action C&C Equipment 812-336-2894
gama goat Video#3 Gama goat in action C&C Equipment 812-336-2894
::2014/08/21::
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13
GAMA GOAT trail riding - Steel Soldiers GA rally 2010
GAMA GOAT trail riding - Steel Soldiers GA rally 2010
::2010/10/23::
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14
M561 6x6 Gama Goat 1 1/4-ton Truck
M561 6x6 Gama Goat 1 1/4-ton Truck
::2009/08/15::
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15
Unboxing Tamiya
Unboxing Tamiya's New M792 Gama Goat Ambulance (1/35)
::2014/12/15::
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16
Gama Goat walkaround and highspeed
Gama Goat walkaround and highspeed
::2014/05/19::
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17
Gama-Goat 3
Gama-Goat 3
::2010/05/30::
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18
AFHMs Gama Goat
AFHMs Gama Goat
::2012/08/24::
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19
Gama Goat in Saverne 2014 #4
Gama Goat in Saverne 2014 #4
::2014/09/03::
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20
Offroad with the M561 Gama Goat.AVI
Offroad with the M561 Gama Goat.AVI
::2011/05/10::
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21
gama goat walk around C&C equipment 812-336-2894 for sale
gama goat walk around C&C equipment 812-336-2894 for sale
::2014/08/21::
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22
Tamiya M561 Gama Goat Build Review
Tamiya M561 Gama Goat Build Review
::2013/12/08::
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23
M561 Gama Goat PBF196K at Tanks Trucks & Firepower Show
M561 Gama Goat PBF196K at Tanks Trucks & Firepower Show
::2013/09/19::
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24
M792 GAMA GOAT & FORD GPA  水上航行会 in 山中湖
M792 GAMA GOAT & FORD GPA 水上航行会 in 山中湖
::2013/10/17::
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25
1971 M561 Gama Goat
1971 M561 Gama Goat
::2010/11/28::
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26
Amphibious Operations - Gama Goat [1080p HD]
Amphibious Operations - Gama Goat [1080p HD]
::2011/10/26::
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27
Baubericht Tamiya Gama Goat Teil 4 "Abschluss der Montage"
Baubericht Tamiya Gama Goat Teil 4 "Abschluss der Montage"
::2013/12/05::
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28
Baubericht zum Tamiya M561 GAMA GOAT Bausatz
Baubericht zum Tamiya M561 GAMA GOAT Bausatz
::2013/11/16::
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29
Gama Goat in Saverne 2014 #6
Gama Goat in Saverne 2014 #6
::2014/09/03::
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30
Gamagoat M561 swim 003
Gamagoat M561 swim 003
::2007/05/05::
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31
Gama Goat 2 in action.
Gama Goat 2 in action.
::2013/10/23::
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32
Gama goat
Gama goat
::2009/05/08::
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33
Gama Goat Detroit 3-53 running for the first time
Gama Goat Detroit 3-53 running for the first time
::2011/12/23::
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34
Offroad with the gama Goat 01
Offroad with the gama Goat 01
::2010/05/02::
Play Video
35
Gama Goat trail riding - Steel Soldiers rally GA 2010
Gama Goat trail riding - Steel Soldiers rally GA 2010
::2010/10/28::
Play Video
36
Gama-goat
Gama-goat
::2012/07/31::
Play Video
37
Screaming Gama Goat
Screaming Gama Goat
::2011/02/08::
Play Video
38
Unboxing the New Tamiya M561 Gama Goat (1:35 scale)
Unboxing the New Tamiya M561 Gama Goat (1:35 scale)
::2013/09/13::
Play Video
39
Compiègne 2012 - Gama Goat.m4v
Compiègne 2012 - Gama Goat.m4v
::2012/04/04::
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40
Gama Goat in action.
Gama Goat in action.
::2013/10/23::
Play Video
41
Tamiya M561 Gama Goat In-Box Review
Tamiya M561 Gama Goat In-Box Review
::2013/10/14::
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42
Baubericht zum Tamiya M561 GAMA GOAT Bau Teil 2
Baubericht zum Tamiya M561 GAMA GOAT Bau Teil 2
::2013/11/21::
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43
Gama Goat trail ride at the Steel Soldiers GA Rally
Gama Goat trail ride at the Steel Soldiers GA Rally
::2010/10/25::
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44
Building the Gama Goat V8 Exhaust System
Building the Gama Goat V8 Exhaust System
::2013/01/26::
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45
Gama Goat Cruising at 60 MPH
Gama Goat Cruising at 60 MPH
::2011/11/10::
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46
DHWife Driving the Gama Goat
DHWife Driving the Gama Goat
::2008/11/01::
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47
Gama Goat going up hill - backwards at Steel Soldiers rally
Gama Goat going up hill - backwards at Steel Soldiers rally
::2010/10/23::
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48
Gama Goat in Saverne 2014 #1
Gama Goat in Saverne 2014 #1
::2014/09/01::
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49
Gama Goat leaving the West Side
Gama Goat leaving the West Side
::2010/07/21::
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Kinderbelustigung mit Gama Goat....MOV
Kinderbelustigung mit Gama Goat....MOV
::2011/05/12::
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RESULTS [51 .. 101]
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M561 “Gama Goat”
M561 Gama Goat.JPEG
M561 "Gama Goat"
Type 6x6 Cargo
Place of origin  United States
Service history
In service 1970s-1990s
Used by  United States, Mexico
Production history
Designer Chance-Vought Aircraft
Designed 1962-1966
Manufacturer CONDEC
Produced 1969-1973
Number built 15,274
Variants M792 Ambulance
Specifications
Weight 7,275 lb (3,300 kg)
Length 227 in (5.8 m)
Width 84 in (2.1 m)
Height 91 in (2.3 m)
Crew 1

Engine Detroit Diesel 53
160 cu in (2.6 L) diesel I3
101 hp (75 kW), 217 lbf·ft (294 N·m)
Suspension Wheel 6x6
Operational
range
420 mi (680 km)
Speed 56 mph (90 km/h)

The Gama Goat was a six-wheel-drive semi-amphibious off-road vehicle originally developed for use by the US Military in the Vietnam War. The 'Goat used an articulated chassis, so that from distance it appears to be a four-wheel drive vehicle pulling a two-wheel trailer, but it is a single six-wheel vehicle with a four-wheel steering arrangement with the front and rear wheels turning in opposite directions. It was famous for its ability to travel over exceptionally rough and muddy terrain.

The vehicle's nickname came from two sources; "Gama" from the name of the inventor of its powered articulated joint, Roger Gamount, and "Goat" for its mountain goat-like off-road ability. Its military designation was M561, 6×6 tactical 1-1/4-ton truck. There was also an ambulance version known as the M792. The 'Goat is prized among military vehicle collectors because it is so unusual and in short supply. The vehicle was replaced by the CUCV and HMMWV.

History[edit]

The concept for the vehicle came when the French Army reported that the US Army trucks provided to them were woefully inadequate for the terrain in Vietnam. In 1959, ARPA (now known as DARPA) funded a research project called Project 'Agile' to develop a new tactical truck for the Southeast Asia theatre, as well as other projects of interest to the then-looming Vietnam War.

Several companies bid for the contract, including Clark, General Motors and LeTourneau, but the contract was awarded to Ling-Temco-Vought (LTV) aerospace, best known for their A-7 Corsair II aircraft. Final construction of the vehicles was conducted by the Consolidated Diesel Electric Company (CONDEC) at their factory in Charlotte, North Carolina. CONDEC also had factories in Schenectady, New York, where the Gama Goat was originally manufactured, and in Greenwich, Connecticut, where the parts for the Gama Goat were produced. In the early 1960s, the company moved to Waterbury, Connecticut for a few years, then closed their plants in New York and Connecticut to move to Charlotte, North Carolina for cheaper labor and facilities.

Gama Goat ride at the Muckleburgh Collection

Description[edit]

Overall, some 15,274 Gama Goats were built at a cost of US $8,000 each ($59,869 today[when?]); this was considered quite high at the time. While the Gama Goat had exceptional off-road ability, its quirky steering made it hard to handle on pavement, and its tendency to flounder in amphibious operations required drivers to have special training in order to operate it. This meant it could not be the "general purpose" vehicle the Army had hoped for, and production was halted after the original contract expired. This is somewhat ironic, as some[who?] claim the problems were largely due to cost-cutting modifications made at the request of the US Army.

The air-cooled engine used in the original prototypes overheated in use, and was replaced in the production vehicles with a Detroit 3-53 diesel engine. The high-intensity noise from the two-stroke diesel engine resulted required hearing protection while driving the vehicle. The double hull construction and complex articulated drivetrain made maintenance difficult (the lube order alone took around six hours). In service in Vietnam, Gama Goats would often be sent out ahead of other vehicles in order to arrive at their destination at the same time.

While technically listed as amphibious, the Gama Goat's swimming capability was limited to smooth water crossings of ponds, canals and streams due to the very low freeboard and the lack of a propeller. Propulsion in the water was supplied by the six spinning wheels, and bilge pumps were standard equipment. Drivers had to remember to close the hull's drain openings before swimming the vehicles. Some models had extra equipment installed which made them too heavy to swim, such as heavy-duty winches, communications shelters that made them top heavy, or radar gear.

It was designed to be air-transportable and droppable by parachute.

Additional Specifications[edit]

M561 Gama Goat

Articulation[edit]

  • Roll at center axle ± 15 degrees
  • Roll at rear axle ± 30 degrees
  • Pitch at rear axle ± 40 degrees
  • Wall climb (vertical) 18 in (460 mm)
  • Angle of approach 62 degrees
  • Angle of departure 45 degrees
  • Hump angle 140 degrees

Suspension[edit]

  • Front and Rear independent coil springs at each wheel
  • Center single leaf spring and swing axle

Steering System[edit]

  • Type Mechanical front and rear simultaneously operated
  • Steering ratio 24:1
  • Turning radius 29 ft (8.8 m)

Variants[edit]

  • M561
  • Cargo / personnel (eight troops) carrier
  • Communications (separate shelter installed in the cargo compartment)
  • Mortar carrier
  • Radar (counter-mortar/artillery system)
  • Radar (FAAR System)
  • M792
  • Ambulance

Survivors[edit]

In film[edit]

  • In Stripes, several Gama-Goats are used as stand-ins for Soviet vehicles due to their "foreign" look. Bill Murray drives one up to a Soviet base in Czechoslovakia dressed as a Soviet soldier to rescue his friends from captivity.
  • In McHale's Navy, several Gama Goats are seen driving back and forth in the terrorists' compound.

See also[edit]

References[edit]

  • SNL G874
  • Doyle, David (2003). Standard catalog of U.S. Military Vehicles. Kraus Publications. pp. 102–104. ISBN 0-87349-508-X. 
  • Ware, Pat (2010). The World Encyclopedia of Military Vehicles. Lorenz Books. p. 228. ISBN 0-7548-2052-1. 

External links[edit]

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