TM 55-1680-358-12&P
SECTION II. DESCRIPTION AND DATA
1-6. Description. The functional and physical
descriptions of the Helicopter Internal Cargo Handling
System are as follows:
a. Functional Description. The Helicopter Internal
Cargo Handling System provides low-friction, load/unload
conveyor ramps. It also includes conveyors for moving
cargo within the aircraft.
b. Physical Description. The Helicopter Internal
Cargo Handling System consists of three major sections.
These are the cabin/cargo area, ramp section, and ramp
extension section, as shown in Figure 1-1.
(1) Cabin/Cargo Area. The cabin section of
the Helicopter Internal Cargo Handling System is made
up of three outboard rail/roller assemblies on each side of
the cabin. These outboard assemblies are identical but
symmetrically opposite. These are outboard rail/roller
assemblies,
stations
158.500
to
274.000,
outboard
rail/roller assemblies, stations 272.531 to 374.000, and
outboard
rail/roller
assemblies,
stations
373.469
to
487.000. These assemblies utilize twenty-six 5k tiedown
fitting assemblies, eight 10k fitting assemblies and two
tiedown fitting assemblies, station 360.000. Four inboard
guide/roller assemblies are mounted in the center of the
cabin floor. They are secured with ten centerline ring plug
assemblies to the 5k rings in the floor.
(2) Ramp Section. The ramp section of the
system includes a right-hand ramp guide rail/roller
assembly and a right-hand ramp inboard guide/roller
assembly. There are also symmetrically opposite
assemblies. A separate ramp support assembly is
provided for use during loading and unloading.
(3) Ramp Extension Section. This section
uses two identical ramp extension roller assemblies and
separate ramp extension support assemblies.
1-7. Tabulated Data. Refer to Table 1-1 for leading
particulars pertinent to the Helicopter Internal Cargo
Handling System.
Table 1-1. Leading Particulars
System Nomenclature ..................................................................................................... Helicopter Internal Cargo
Handling System (HICHS)
Part Number ................................................................................................................... 18049 J 100
Manufacturer ................................................................................................................... AAR Brooks & Perkins Corp.
Advanced Structures Division
(81868)
Weight:
Cabin Section .................................................................................................................. 647 pounds
Ramp Section ................................................................................................................. 141 pounds
Ramp Extension Section .................................................................................................. 51 pounds
Ramp Extension Supports ............................................................................................... 26 pounds
Ramp Support.................................................................................................................. 13 pounds
Total Weight ................................................................................................................... 878 pounds
Typical Cargo:
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......................................................................................................................... **
1-5
