0002 00  TM 10-1670-287-23&P  10. Automatic Ripcord Release AR2. The AR2 is designed to open the main or reserve parachute  compartment automatically. The AR2 consists of an aneroid with associated mechanism, rate-of-fall  sensing chamber, and a spring-loaded power cable. All components except the power cable and its  flexible conduit are contained in a housing. The housing provides all required chamber, passages  and mounting pads for each component. An altitude setting dial and JUMP/OFF switch are mounted  on the housing. There are two power cables assemblies, one for opening the main parachute and  one for opening the reserve parachute. The power cable ends in a fixed eye that connects to the  parachute ripcord pin. A lanyard assembly with cap is attached to the power cable to protect the  open end of the power housing when detached from the AR2. Refer to TM 10-1670-305-23&P for  operational limitations, maintenance, and repair.  11. Reserve Parachute Assembly. The reserve parachute consists of a seven-cell ram air canopy and  the reserve deployment system. The canopy is attached to the reserve risers and is packed in the  upper compartment of the container. The reserve parachute can be deployed by three methods:  manually by using the reserve ripcord, by the reserve static line upon release of the main parachute  after pulling the main canopy release ripcord, or by actuation of the reserve mounted AAD.  0002 00-12  Change 1  Retainer Cable Seal Power Cable Seal  Retaining Ring  Power Housing  Main Power Cable  Power Housing  Retainer Lanyard  Assembly With Cap Decal JUMP/OFF  JUMP/OFF Switch  Assembly  Storage Cable  Piston Rod Cap 