PART 1-DESCRIPTIVE

      23. Flaps control and position indicator

      (a) The selector lever (10) on the left of the cockpit extends
      from the rear of the engine control box. The selector
      lever (62) on the right is in the quadrant on the starboard
      wall. Each lever has three positions, UP-NEUTRAL-
      DOWN and either may be used to operate the flaps.

      (b) Any flap setting up to 80° can be obtained by returning
      the selector lever to neutral when the desired setting has
      been reached. The selector should normally be left in
      the up or down position when the flaps are fully up or
      fully down.

      (c) The flap position indicator (30) is fitted above the rate of
      climb indicator.
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Page 19  24. Undercarriage and flaps emergency operation
Para. 24
(a) (b)     (a)  As soon as hydraulic failure is suspected ensure that the flap selector
(c)               lever is at neutral and the windscreen wiper selector is at OFF to 
                  avoid unnecessary dumping of fluid via the flap or windscreen wiper pipelines.

            (b)  If the engine-driven pump fails, and Mod. 3627 is not embodied
                  the handpump between the seats can be used to operate the under-
                  carriage, flaps and windscreen wiper after selecting the desired
                  service by the normal selector lever. Up to 115 strokes of the
                  hydraulic handpump may be necessary to lower the undercarriage
                  fully.

            (c)  If Mod. 3627 is embodied select the desired service and, if the main
                 accumulator has insufficient pressure, move the EMERGENCY
                 HYDRAULICS lever fully aft.
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      (d) If it is required in an emergency to retract the under-
          carriage, when on the ground, the solenoid-operated
          plunger which retains the undercarriage operating lever
          in the DOWN position can be overridden by setting
          either of the two U/C OVERRIDE guarded switches
          (15), (54) to ON. Undercarriage UP may then be
          selected.

      25. Airbrakes control
      (a) Two positions only-ON and OFF-can be selected by
          the lever (9) which is duplicated at the port and starboard
          engine control boxes.

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