Hello tick-ga,
The M809 Series 5 ton trucks and the M939 Series 5-ton trucks
are both currently in use; however the M809 Series vehicles were
introduced before the M939 series. The 939 series vehicles are an
improved version of the M809 series.
One of the major differences between the M939 Series vehicles and the
M809 is the automatic transmission.
"The M809's top speed is 54 mph and it has a manual transmission; the
M939 has a top speed of 65 mph and an automatic transmission,"
“The 939 series vehicles are an improved version of the M809 series.
The improvements make the M939 series "more reliable and easier to
operate". The major improvements relate to the addition of an
automatic transmission and improvements to the power steering,
electrical, cooling, and a new style of tilt hood.”
http://army4x4.com/900_series.shtml
M-939A2 5-TON TRUCK – Automatic Transmission
“The M-939A2 tactical truck is a five-ton capacity, six-wheel drive
cargo truck used for transportation of all types of supplies. The
basic M939A0 model featured improvements such as automatic
transmission, improved power steering, a complete airbrake system, an
improved cooling system, an improved electrical system, a three-crew
member cab, a tilt hood, a hydraulically powered front winch and a
simplified test equipment/internal combustion engine diagnostic
connector.”
“The M-939 series comes in six body styles: cargo, dump, wrecker, van
and long wheel base cargo. As of late 2000, the most common versions
of the M939 Series vehicles in service were the M923 Cargo Truck, M925
Cargo Truck W/Winch, M927 XLWB Truck, the M931, 5-ton Tractor, and the
M936 Medium Wrecker.”
The major differences between the M939 Series vehicles and the M809
Series vehicles are as follows:
Automatic transmission;
Improved power steering system;
Complete air brake system;
Improved cooling system;
Improved electrical system;
Three crew member cab;
Tilt hood; and
Hydraulically powered front winch.
“There were 10,807 in the Army's inventory in the early 1990s. As of
mid-1998, there were about 32,000 M-939 trucks in the Army fleet.
The US Army settled on adding computer-controlled brakes to its M-939
five-ton tactical trucks to make them safer for soldier-operators. It
began purchasing ABS hardware starting in fiscal year 1999, with
retrofitting to begin in 2000, and the project to be completed in
2003.”
Global Security Org
http://www.globalsecurity.org/military/systems/ground/m939.htm
M809 Series 5 ton trucks - 5-speed manual transmission
“The M809 Series vehicles are equipped with a NHC-250 Cummins diesel
engine, a 5-speed manual transmission, and a 2-speed transfer case.
The M809's top speed is 54 mph and is equipped with a manual
transmission. The M809 Series 5 ton trucks' average useful life is
20-22 years.
The variants of the M809 Series 5 Ton Truck are the M810, M811, M812,
M813, M813A1, M814, M815, M816, M817, M818, M819, M820, M820A1,
M820A2, and M821.
Global Security Org
http://www.globalsecurity.org/military/systems/ground/m809.htm
"The M809's top speed is 54 mph and it has a manual transmission; the
M939 has a top speed of 65 mph and an automatic transmission,"
“There are about 32,000 M939 trucks in the Army fleet, Taube said. ABS
hardware will be purchased starting in fiscal year 1999, he said, and
retrofitting will begin in 2000.”
“The project will be completed in 2003, Taube said.”
http://www.dtic.mil/armylink/news/Jul1998/a19980714m939.html
The MTVR 7-ton will replace the current M809 and M939 series "5 Ton"
fleet.
“The Medium Tactical Vehicle Replacement (MTVR) is fielding a
cost-effective, state-of-the-art truck that replaces an aging fleet of
M809 and M939-series five-ton trucks. With an independent suspension
and other new capabilities, the MTVR is capable of crossing terrain
previously regarded as impassable for trucks. It carries a 7-ton
payload cross-country or up to 15 tons on improved roads.”
http://ve.ida.org/rtoc/open/pilots/mtvr.html
Search Criteria:
Army 5-ton supply trucks
Army 5-ton trucks +transmission
M809 series
M939 series
I hope this helps!
Best Regards,
Bobbie7-ga |
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