PART 1-DESCRIPTIVE

      38. Seat adjustment handle and lean-forward release

          The seat height may he adjusted by the handle on the
          starboard side of the seat. The harness lean-forward
          release is to the rear of this lever.

      39. Manual override D-ring

          The manual override D-ring is fitted over the rip-cord
          D-ring. If manual separation from the seat is necessary
          the override D-ring should be pulled to its fullest extent.
          The parachute is then disconnected from the automatic
          opening line and the protective canvas flap over the rip-
          cord D-ring is removed.

      40. Ripcord D-ring

          This is normally covered by a canvas flap retained in
          position by two press studs and is removed by the action
          of pulling the manual override D-ring. It is provided
          for manual opening of the parachute should either the
          seat fail to eject or automatic opening of the parachute
          fail after ejection.

      41. Leg restraining straps and adjusting controls

      (a) The straps ensure that the occupants' legs are drawn
          back automatically and restrained close to the seat pan
          during ejection, thus providing clearance and preventing
          the legs being blown apart after ejection. The straps
          pass through snubbing units, at the front of the seat pan,
          which allow the straps to pass freely down through the
          unit but prevent them passing upwards. An adjusting
          button under each snubbing unit, when pressed, allows
          the occupant to adjust the cords to give comfortable leg
          movement in the aircraft.

      (b) After ejection the legs are held in position until the
          occupant is separated from the seat. The restraining
          straps are then pulled through the leg restraint garter
          D-rings to free the legs.

      42. Normal operation of the seat

      (a) When either the firing handle is operated the seat is ejected
          and the drogue gun fired half a second later.

26