TM 55-3810-229-14/N
TM 55-3810-229-14/NAVFAC P-941
CHAPTER 4
AIR TRANSPORTABILITY GUIDANCE
are properly loaded or unloaded and secured in the
4-1.
Scope
aircraft in accordance with the criteria contained in
section IV, TO 1C-5A-9.
This chapter provides air transportability guidance for
a. The MT-250 and MT-300 cranes can be loaded/
movement of the MT-250 and MT-300 truckmounted
unloaded onto the aft cargo loading ramp without the use
cranes. It presents examples of tiedown diagrams and
of approach shoring.
tiedown data for loading these vehicles in US Air Force
b. Thirteen pieces of 144- x 12- x 2-inch lumber (or
C-5 aircraft.
equivalent) are required when loading/unloading the MT-
250 or the MT-300 cranes onto the forward cargo loading
4-2.
Transport by US Army Aircraft
ramp.
c. Twenty-two pieces of 96- x 12- x 2-inch lumber
Both the MT-250 and the MT-300 truck-mounted cranes
(or equivalent) are required as sleeper shoring.
exceed the size and weight limits for either internal or
d. Sixteen pieces of 24- x 12- x 3/4-inch plywood (or
external transport by US Army fixed- or rotary-wing
equivalent) are required for use between the axles and
aircraft.
the sleeper shoring.
4-3.
Maximum Utilization of Aircraft
4-6.
Aircraft Preparation
Additional cargo, including personnel, within allowable
a. Place the aircraft in the forward kneel position
load limits and restrictions prescribed by pertinent safety
when loading through the forward cargo loading doors.
regulations can be transported with these cranes in US
b. Place the aircraft in the aft kneel position when
Air Force aircraft.
loading through the aft cargo doors.
c. Position the forward ramp, ramp extension, and
4-4.
Safety
ramp extension toes in the drive-in mode when loading
In addition to the safety precautions contained in chapter
through the forward cargo loading doors.
d. Position the aft ramp and pressure door in the
a. The activity offering the vehicles for transport will
drive-in mode when loading through the aft cargo loading
notify the aircraft commander or his designated
doors.
representative in the event ammunitioin or explosives are
e. Stow the roller conveyors as appropriate.
to be transported within a vehicle.
f. Stow the flight station ladder when loading through
b. The vehicle fuel tanks must not be more than
the forward cargo loading doors.
three-fourths full.
g. Stow the troop compartment ladder when loading
c. The required number of tiedowns as well as their
through the aft cargo loading doors.
capacity must be checked, and the criteria for gravity
h. Position the approach shoring as follows when
forces, adhered to.
loading through the forward cargo loading doors:
d. Personnel heater fuel tank must not be more than
(1) Place one piece of 144- x 12- x 2-inch
three-fourths full.
lumber (or equivalent) laterally on the ground and place it
against the forward ramp extension toes (fig 4-1, item A).
4-5.
General
The aircraft commander or his representative is
responsible for insuring that the items described below
4-1
