TM-55-2320-272-14-1
TRUCK 5-TON, 6X6 M939-SERIES / M939A1-SERIES / M939A2-SERIES
TECHNICAL MANUAL; TRANSPORT GUIDANCE
SEPTEMBER 1993
TM-55-2320-272-14-1 - Page 60 of 65
CHAPTER 5
TM 55-2320-272-14-1
AIR TRANSPORT
Section I.
5-1. General
The trucks are all air transportable on C-5 and C-
17 aircraft. The M923/M923A1/M923A2 thru M932/
M932A1/M932A2 trucks are air transportable on C-
130 and C-141 aircraft. The M936/M936A1/M936A2
wrecker trucks are transportable on the C-130 and
C-141 aircraft using special procedures.
Variables such as weather, airfield characteristics,
and distance to destination affect total cargo loads
and operating ranges. AFP 76-2 provides general
guidance on total cargo loads and operating ranges.
For specific guidance, contact the nearest Air
Mobility Command (AMC) activity.
The shipping unit must ensure that the trucks are
properly prepared for air transport before reaching
the marshaling area. All trucks cargo must be
properly secured. The shipping unit will assist the
aircraft loadmaster/crew in loading and tying down
the trucks. It is the responsibility of the shipping
unit to provide shoring material.
The M925, M925A1, and M929 trucks are certified
for low-velocity airdrop (LVAD) from the C-130 and
C-141, and low-altitude parachute extraction
(LAPE) from the C-130. Procedures can be found in
FM 10-526.
Section Il. TRANSPORT
5-4. USAF Cargo Aircraft
The trucks are all certified for transport on the C-5
and C-17 aircraft. The M923/M923A1/M923A2 thru
M932/M932A1/M932A2 trucks are certified for
airlift on the C-130 and C-141 aircraft. The M936/
M936A1/M936A2 wrecker trucks are certified for
transport on the C-130 and C-141 aircraft using
special procedures shown in paragraph 5.7.1.
The maximum vehicle axle loads permitted on the
C-130 and C-141 aircraft floors limit the allowable
cargo payload on each of the vehicles. The maxi-
mum axle loads are 13,000 pounds for the C-130
and 20,000 pounds for the C-141. Axle loads be-
tween 6,000 and 13,000 pounds are limited to a
28.75-foot portion of the C-130, and axle loads
between 10,000 and 20,000 pounds are limited to
26.7-foot portion of the C-141.
GENERAL
5-2. Safety
Besides the general safety notes in paragraph 1-6,
the following safety considerations and precautions
apply for air transport:
a.
Personnel must not refuel or otherwise
service the trucks within 50 feet of the aircraft.
b.
Personnel will wear ear protection (plugs) at
all times while working on the flightline.
c.
Fire extinguishers will be readily available
during aircraft loading and unloading operations.
d.
The vehicle maximum speed is 5 miles per
hour (mph) when within 25 feet of an aircraft. The
maximum speed on loading ramps or inside an
aircraft is 3 miles per hour (mph).
e. The fuel tank will be filled in accordance with
TM 38-250/AFR 71-4,
Preparation of Hazardous
Materials for Military Air Shipment.
5-3. Hazardous Material
The shipping unit must provide written notification
before shipping dangerous or hazardous materials
aboard military or Department of Defense (DOD)
contract aircraft. Specific instructions are in TM
38-250/AFR 71-4 or in CFR 49.
BY CARGO AIRCRAFT
5-5. U.S. Army Aircraft
The trucks exceed weight and dimensional limita-
tions for internal transport on U.S. Army fixed-
wing and rotary-wing aircraft.
While several of the cargo truck and truck tractor
versions are within the CH-47 helicopter external
air transport capacity, there is no requirement for
EAT. Therefore, Natick Research, Development
and Engineering Center (Natick) has not evaluated
nor certified the trucks for helicopter lift.
The U.S. Marine Corps is working with Natick to
evaluate and certify some of their trucks for EAT
by the Marine Corps CH-53. If certified, the trucks
will only be transportable at curb weight using a
modified/airlift bumper. For further information
contact Natick, SATNC-UAS, Natick, MA 01760.
5-1
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