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M911

Tank transporter

Oshkosh M911

The M911 tractor truck was based on commercial design in order to reduce operating costs

 
 
Country of origin United States
Entered service 1977
Configuration 8x6
Cab seating 1 + 2 men
Dimensions and weight
Weight (empty) 18.1 t
Payload capacity ?
Length 9.3 m
Width 2.44 m
Height 3.4 m
Mobility
Engine Detroit Diesel 8V92TA diesel
Engine power 450 hp
Maximum road speed 72 km/h
Range up to 1 000 km
Maneuverability
Gradient 35%
Side slope ?
Vertical step ?
Trench ?
Fording 0.7 m

 

   The M911 tank transporter was developed and built by Oshkosh. It emerged as a supplement for the previous M746 tractor truck, which proved to be expensive to maintain and operate. In 1976 the US Army issued a requirement for a new tank transporter. The US Army required the new vehicle to have proven commercial background and to have low maintenance costs. In result production contract of 747 vehicles went to the Oshkosh Corporation. The new tank transporter was designated as the M911. Production commenced in 1977. Some of these vehicles are still in service.

   The M911 is based on the F2365 commercial truck. Usually this vehicle was used in conjunction with towed M747 semi-trailer, which has a payload capacity of 60 t. The main mission of the M911 was to transport main battle tanks, tracked and wheeled armored vehicles, self-propelled howitzers, construction equipment and other heavy loads. The cab of this tractor truck accommodates driver and two passengers.

   An unusual feature of the M911 is that the second axle is of pusher type. It is air-suspended and can be raised when not required. When lowered it decreases the fifth wheel load on the other two axles. This axle is normally raised when the truck is running unloaded or without a semi-trailer.

   Tanks are loaded onto the semi-trailer using two 20 t capacity winches located behind the cab.

   The M911 is powered by Detroit Diesel 8V92TA turbocharged diesel engine, developing 450 hp. The same engine was later widely used on other Oshkosh heavy trucks. Engine is coupled with Allison automatic transmission. Vehicle has an 8x6 drive configuration. The tractor truck can operate in climatic conditions ranging from -50C to +50C. This powerful vehicle could be airlifted by a C-141 Starlifter or C-5 Galaxy military cargo aircraft.

   After completion of the US Army order an anticipated option for a further 445 units was not exercised. The M911 was marketed internationally as the Heavy Equipment Transporter (HET). The only export operator was Thailand with 12 units.

   With the introduction of M1A1 Abrams main battle tank into service with the US Army, the M911 was unable to carry the load. Vehicles demonstrated poor durability with loads in excess of 60 t during operations Desert Shield and Desert Storm. Its replacement emerged as the Oshkosh M1070.

 

 

 

 
Oshkosh M911

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Oshkosh M911

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Oshkosh M911

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Oshkosh M911

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Oshkosh M911

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