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M917A1

Dump truck

M917A1 dump truck

Despite similar designation the M917A1 was unrelated to the previous M917 dump truck

 
 
Country of origin United States
Entered service 1989
Configuration 6x6
Cab seating 1 + 1
Dimensions and weight
Weight (empty) ~ 14 t
Payload capacity ~ 17 t
Dump capacity 11.1 m
Length 7.65 m
Width 2.59 m
Height 3.15 m
Mobility
Engine Cummins diesel
Engine power ~ 400 hp
Maximum road speed ~ 89 km/h
Range ~ 850 km
Maneuverability
Gradient 60%
Side slope 30%
Vertical step ?
Trench ?
Fording 0.51 m

 

   The M917A1 dump truck replaced in service the previous M917. Interestingly despite similar designation these vehicles were completely unrelated. The M917 was a product of AM General, introduced in the late 1970s. It had 8x6 configuration. Its successor, the M917A1, was a product of Freightliner. It had 6x6 configuration and slightly smaller dump body. This truck was produced since 1989. It is unknown how many of these dump trucks were built.

   This truck has a rear-tipping 11.1 m dump body. It was used for various earthmoving and construction work. It could be equipped with a material control system for spreading material in a variety of patterns. It seems that some of the US Army M917A1 dump trucks are equipped with this system. The new M917A1 truck enjoyed reputation for high fuel efficiency and low operating costs.

   Cab of the M917A1 accommodates driver and one passenger. Add-on armor kit has been developed for operation in hotspot areas. It provides some degree of protection against small arms fire, artillery shell splinters and mine blasts.

   The M917A1 is powered by a Cummins turbocharged diesel engine, unofficially known as Big Cam II. Engine is mated with an Allison 4-speed automatic transmission.

 

Variants

 

   M917A2 is an improved and more modern version of the M917A1. Externally it is similar to the M917A1, but has improved engine and gearbox. It was powered by Detroit Diesel engine, developing 430 hp. Also there were some other improvements. Its production began in 2001. It was also produced by Freightliner. Its successor became the M917A3 dump truck. However it was a product of Mack Defense

 

 

 
M917A1 dump truck

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M917A1 dump truck

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M917A1 dump truck

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M917A1 dump truck

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