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 TM 55-1520-238-S
237 PLACE SHORING.
To prevent damage to helicopter
and cargo aircraft, use shoring as
necessary under helicopter main
and tail wheels to provide clearance
CAUTION
between helicopter underbelly and
cargo aircraft ramp hinge.
An adequate thickness of ramp pedes-
tal shoring is required to ensure the
a. Unlock Tail Wheel Swivel. Push swivel
plane of the ramp toes, when sup-
lock lever down to release tail wheel swivel
ported by the approach ramps,
lock. Install tail wheel lock safety pin (fig.
matches the cargo ramp.
237.1 Pedestal Shoring. Place the ramp pedestal
b. Install Tail Wheel Steering Bar and
shoring under the skid pad. (fig. 237).
Winching Yoke. Connect winching yoke
(item 8, table 21) to tail landing gear wheel
237.2 Approach Shoring. Place the built up shoring
fork (fig. 214). Tighten yoke studs onto
or the prefabricated ramps (fig. 235) under the ramp
ends of tail wheel axle. Install steering bar
toes. Position secondary approach shoring ramps (fig.
in yoke tube.
NOTE
238 HELICOPTER LOADING AND TIEDOWN
Tail wheel steering bar will be used to
(TACTICAL SHIPMENT).
steer helicopter and to keep main and tail
wheels on loading ramps.
WARNING
c. Align Helicopter at Shoring. Position he-
licopter main landing gear to aline with ap-
To prevent fire, explosion, or weap-
proach shoring (fig. 239).
on discharge, verify that armament,
d. Connect Cargo Aircraft Winch Cable to
canopy jettison, fuel, and electrical
Helicopter. Couple hooks on forward
systems are safe on each helicopter
winching adapter cable (item 7, table 21)
prior to loading.
to helicopter main wheel arm inboard tow-
To prevent injury to personnel and
ing eyes (fig. 215). Cargo aircraft load-
damage to helicopter and cargo air-
master will direct coupling of the forward
craft, the helicopter will be re-
winching adapter cable to cargo aircraft
strained with chains and wheel
winch cable and take up cable slack.
chocks prior to releasing tension on
e. Assign Personnel. Assign loading team
the winch cable.
members to monitor ramp crest, overhead
To prevent injury to personnel and
and sidewall clearances, operate tail wheel
damage to helicopter and cargo air-
steering bar, and operate helicopter
craft in the event of winch failure,
brakes.
the helicopter CPG station will be
occupied by a qualified person to
CAUTION
operate brakes.
As helicopter moves up the ramp
CAUTION
nose first, under-belly clearance is
critical.
To prevent damage to helicopter
The first critical clearance encoun-
and cargo aircraft, chocks shall be
tered will be the gun cage to ramp
used to prevent the helicopter from
clearance. Adjust shoring under
moving past the required cargo air-
main wheels as required to maintain
craft fuselage station.
clearance.
To prevent damage to helicopter
The second critical clearance is the
dopler antenna fairing to the ramp
and cargo aircraft, ensure that rotor
head and tail rotor are properly
crest. Maintain clearance by raising
positioned prior to approaching
cargo aircraft ramp (after helicopter
cargo aircraft.
tail wheel is firmly on ramp).
Change 4
289
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