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| General
information |
| The
U.S. Army M977 A2 HEMTT series mobility tactical
truck has been developed by Oshkosh Truck Corporation
for cross-country military missions carrying payloads
up to 13 tons (9979 kg). The full line up of M977
A2 models, five cargo trucks, a fuel servicing truck,
a load handling system. With multiple capabilities,
these trucks are critical to mission success. The
M977 A2 vehicles are used for direct rearming of
the Multiple Launch Rocket System; transport of
Patriot erectors/launchers; resupply of field artillery
ammunition and forward area rearm in armor, cavalry
and infantry units; refueling of tracked vehicles,
wheeled vehicles and helicopters in forward areas;
and recovery of disabled wheeled and tracked vehicles.
The two-person, two-door forward control cab is
of heavy-duty welded steel construction with corrosion-resistant
skins. To reduce procurement and life cycle costs,
the HEMTT features extensive use of commercial automotive
components including an Oshkosh truck cab, standard
eight-cylinder diesel engine and a standard four-speed
automatic transmission. |
| Variants
: |
M977
A2 Cargo Truck : basic version
M977 A2 EPP : Electrical power plant
M977 A2 LRPT : Lare repair parts
transporter
M978 A2 : Fuel servicing transporter
truck tanker
HEMTT M983 A2 LET : Light equipment
transporter
HEMTT M983 A2 : Patriot missile tractor
M984 A2 : Recovery truck
M985 A2 : Cargo and MRLS resupply
M985 A2 GMT : Guided missile transporter
M1120 A2 HEMTT-LHS : Heavy expanded
mobility tactical truck
M1977 A2 CBT : Comon bridge transporter |
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 Back
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| Mission
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| These
HEMTT M977 series were built to stand up
to the challenges of the field. With gross
vehicle weight ratings (GVWR) that range
from 62,000 lbs. (28123 kg) to 95,000 lbs.
(43091 kg), the M977 A2 HEMTTs have the
power and agility to climb a 60-percent
grade with a full payload of 22,000 lbs.
(9979 kg) and even ford water crossings
up to 48 inches (1219 mm) deep.
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| Engine |
| Built
with field proven components and a high
degree of parts commonality, all models
include a 445-horsepower diesel engine,
6-speed automatic transmission and a 2-speed
Oshkosh® transfer case with air-operated
front tandem axle disconnect. The M977 is
powered by a DDC Model 8V92TA/445 hp 12.1
liter DDEC4 engine, coupled to a Allison
HD4560P/6-speed automatic transmission and
an Oshkosh 55,000/2-speed transfer case.
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| Chassis |
The
HEMTT A2 truck is 8x8 wheeled vehicle. The
front and rear tandem axles are single reduction,
with driver controlled inter-axle differential
locks. |
| Accessories
|
| Oshkosh
HEMTT M977 trucks are equipped with standard
military features, such as front and rear
tow eyes,blackout lights, 24-volt electrical
systems, and rear pintle hooks for towing
trailers and artillery. Standard equipment
includes: suspension seats for the driver
and passenger, seat belts, heater and defroster,
dual sun visors, interior lights, variable
speed air windscreen wipers, windscreen
washers and electric and air horns. A spare
tyre and wheel assembly is mounted behind
the cab and provided with a davit to assist
in lowering it to the ground.
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| Specifications |
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Type |
|
Cargo
truck |
Country
users |
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United
States, Bahrain, Egypt,
Greece, Israel, South Korea,
Kuwait, Saudi Arabia and
Taiwan. |
Crew |
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2
+ 1
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Chassis |
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8x8 |
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Weight |
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17,600
kg |
Load
Weight |
28,123
kg
a
|
Speed |
90
km/h |
Range |
644
km |
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