TM 55-1680-358-12&P
SECTION IV
OPERATING INSTRUCTIONS
2-11. Cargo Handling. The Helicopter Internal Cargo
Handling System can be used for a variety of cargo.
a. Cargo Range. Cargo that can be handled by the
Helicopter Internal Cargo Handling System is listed in
Table 2-4. A mixture of pallets, personnel and/or
vehicles may be combined. However, all cargo must be
properly restrained to ensure safe operation of the
helicopter and the safety of personnel. Loads must be
restrained in accordance with procedures and guidelines
set out in TM55-450-15, Air Movement of Troops and
Equipment (Nontactical) HQ DA June 1971 and TM55-
450-18, Internal and External Loads, CH47 Helicopter,
HQ DA August 1970.
b. Load. Total load must always be within the
normal weight and center-of-gravity limits as specified in
the operational technical orders.
2-12. System Configurations. The Helicopter Internal
Cargo Handling System can be placed in any one of
four configurations. These are loading, restraint, flight
and unloading. Refer to Tables 2-5, 2-6 and 2-7 for the
configurations applicable to 463L Pallets, Warehouse
Pallets and Wheeled Vehicles. To accomplish the
configurations described above and in the referenced
tables,
several
components
must
be
set
in
a
predetermined position. These components are listed
below in conjunction with the illustration that defines the
component location and/or position.
(1) Outboard Rail/Roller Assemblies, Stations
158.500 to 274.000, 272.531 to 374.000, and
373.469 to 487.000 - Figure 2-23.
(2) Inboard Center Rail Guide - Figure 2-24.
(3) Ramp Support Assembly - Figure 2-25.
(4) Pallet Lock Assembly - Figure 2-26.
(5) Retractable Flange Assembly - Figure 2-26.
(6) 10k Fitting Assembly - Figure 2-27.
(7) 5k Tiedown Fitting Assembly - Figure 2-28.
Table 2-4. Applicable Cargo
Type of Cargo
Quantity
HCU-6/E (88 x 108 inches)
3
HCU-12/E or HCU-10/C (54 x 88 inches)
6
Warehouse wooden pallets (40 x 48 inches)
8-10***
Wheeled vehicles
*
Miscellaneous (TOW, Hellfire, etc.) equipment
*
(pallet or skid mounted)
Personnel
**
* Quantity dependent on size and helicopter capacity.
** System does not provide for personnel transport but it is
compatible with personnel.
*** Quantity dependent on pallet weight.
NOTE
A suitable mix of the above cargo can be handled as required.
2-35
