PART 1-DESCRIPTIVE

      35. Pitot head heater

          The pitot head heater switch (47) is adjacent to the
          navigation lights switch.

      36. Emergency equipment

      (a) First aid kit

           This is on the aft portion of the hood behind the port
           seat.

       (b) Crowbar

           This is on the starboard wall.

       (c) Hand fire-extinguisher

            A hand fire-extinguisher (61) is on the cockpit floor,
            starboard side, forward.
             

         EJECTION SEATS MK. 3 B
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         37. General
Page 24   (a)  Two Mk. 3B pilot ejection seats are fitted, each incorporating a
Para. 37         type ZF or ZH harness, headrest, parachute container for the Mk. 9
A.L.4             or Mk. 19 parachute, a seat well for the dinghy and emergency
                    oxygen supply and leg restraining straps.

              (b) At the rear of each seat is the 50 ft./sec. ejection gun and a drogue
                   gun. Stowages for the seat safety pins are on either side of each seat.

              (c) When Martin Baker Mods. 293, 387 and 491 are all embodied a
                  G-stop is incorporated to prevent the opening of the main parachute
                  if the speed of the seat after ejection is too high for safe deployment.
                  The switch prevents the operation of the barostatic time delay unit
                  until the speed of the seat has fallen to a safe figure.

             (d) Irrespective of the Mod. state, the seat can be used at 200 feet and
                  above provided that the aircraft's flight path is parallel to the ground.
                  If the aircraft is descending or nose-down, more than that minimum
                  altitude will be required.

             (e) A negative G strap is attached to the seat pan and passes upwards
                  through a bracket at the front of the seat. It terminates in a Y-piece,
                  the two end loops of which are engaged by the shoulder harness lugs
                  when strapping in (See para. 56 (d)). Tightening the strap prevents
                  forward movement of the p.s.p. and the seat occupant and gives
                  improved vertical restraint under negative G conditions.

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