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Figure 1-1.  CH47 Helicopter Internal Cargo Handling System
Table 1-1.  Leading Particulars (Continued)

TM-55-1680-358-12P Survival Kit Overwater Individual (NSN 1680-00-973-1863) Manual
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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







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