It is rated to handle 22K lbs payload. Air ride suspension.
c. Purpose of Equipment. To transport 22,000 pounds of payload.
(1) Eight 40 x 28 inch ammunition pallets.
(2) Four evenly distributed Multiple Launch Rocket System (MLRS) pods.
(3) Two fuel bladders and two fuel pods.
a. The HEMAT is a four-wheel trailer of lowboy design with a box-beam frame with
large tires for off-road capability. The cargo area is constructed of steel with
ship lap wood decking. The fore and aft decks are raised above the cargo deck and
contain the suspension and steering systems.
b. The suspension is an air-bag type suspension for smooth riding and off-road
stability. The steering system is that of a normal front-wheel truck steering
linkage and is controlled by the towbar assembly.
c. The raised fore and aft decks are constructed with tread plate to minimize
slipping or falling when working on the decks.
d. The side panels are removable for easier loading from either side.
e. There are four cargo tiedown rings at each end of the cargo deck and seven on
each side. There are also four evenly distributed MLRS pod stops located at each
corner of the deck. These pod stops are removable to allow other types of cargo.
f. Lift rings are located fore and aft on each side of the raised decks to allow
the HEMAT to be sling loaded or helicopter transported. There are also four vehicle
tiedowns located at each corner of the under deck for railroad transporting.
g. A storage box located in the box beam frame at the rear of the trailer is
used to store tool boxes, parts, and accessories for extended use of the trailer.
h. The HEMAT will normally be towed by the M985 Heavy Expanded Mobility Tactical
Truck (HEMTT). Load capability of the HEMAT is 22,000 pounds of munitions.
i. The towing vehicle provides electrical power through an intervehicular cable
for the HEMAT clearance lights, brake lights, and turn signals.
j. Air is also supplied from the towing vehicle to the HEMAT air system, which
includes three air tanks, air lines, four air suspension bags, and the four-wheel
air brakes.
k. On-board trailer equipment includes a spare tire, jack, jack stand, lug
wrench and handle, eight tiedown straps, and a fire extinguisher. Intervehicular
electrical cable is stored in the storage box when not in use. Chocks are provided
to stabilize the trailer when parked.
l. The trailer is equipped with an air hose fitting to allow use of the HEMTT
air hose to inflate the tires. On old trailers with serial numbers 2000 and below,
with bias ply tires, air pressure in tires should be lowered from 100 psi for
highway travel to 65 psi for off-road travel. On new trailers with serial numbers
2001 and up, with radial tires, air pressure is 105 psi under all travel
conditions, highway and off-road.
