4-3-20. HICHS Cargo Types.
The HICHS allows relatively quick and easy loading of
palletized cargo. The following pallet types may be used:
Three 436L pallets, 88 x 108 inches.
Six HCU-12/E or HCU/C pallets, 54 x 88 inches.
Eight to ten warehouse wooden pallets, 40 x 48
The HICHS has provisions for locking and securing 463L
pallets. This type of pallet does not need to be tied down, but
the cargo must be secured to the pallet. Combinations of
different pallet types may be used. Miscellaneous cargo and
equipment may be carried providing that they do not exceed
weight or floor loading restrictions, and can be properly tied
4-3-21. System Configuration.
The HICHS can be placed in any of four configurations.
These are loading, restraint, flight and unloading. Refer to
Chapter 6 for configurations applicable to 463L pallets,
warehouse pallets, and wheeled vehicles.
To accomplish the configuration 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 compo-
nent location or position.
Outboard rollers fig. 4-3-16.
Warehouse pallet guides fig. 4-3-16.
Ramp support assembly fig. 4-3-16.
Pallet lock assembly fig. 4-3-17.
Retractable flange assembly fig. 4-3-15.
10K fitting assemblies fig. 4-3-18.
5K fitting assemblies fig. 4-3-18.
4-3-22. Hatch Access.
Remove, if necessary, any cargo forward of sta 377.250
to at least sta 157.750.
Remove three centerline ring plug assemblies to free the
forward hatch inboard guide roller assembly (fig. 4-3-17).
Stow the removed parts ahead of sta 272.250. The hatch
is now accessible and the removed parts can be re
installed by reversing the proceeding steps.
4-3-23. System Stowage.
Flip-up the outboard rail/roller assemblies and secure
the seat support tube as shown in fig. 4-3-16. Secure
loading pole to clips located at the top of the buffer board
between sta 300 and 400 on right side of helicopter with
quick release pin. Inboard guide roller assemblies can be
stowed on the floor beneath the troop seats. Secure
ramp extension rollers to the underside of the ramp ex-
tensions with quick release pins. Stow ramp extension
supports on the left side of the helicopter in brackets
mounted between sta 520 and 534. Stow ramp support
at sta 550 left side.
4-3-24. Load Configuration and Sequence.
Chapter 6 contains the detailed descriptions and proce-
dures for load configuration and sequence.