Issued with A.L.No.19/F                                          A.P.1565B, Vol.I Sect.I     

     15.  Automatic boost cut-out

          The automatic boost control may be cut out by pushing
          forward the small red painted lever (14) at the forward
          end of the throttle quadrant.

     16.  Airscrew controls

          The control lever (12) for the de Havilland 20° or
          Rotol 35° constant speed airscrew is on the throttle
          quadrant.   The de Havilland 20° airscrew has a Positive
          Coarse Pitch position which is obtained in the extreme
          aft position of the control lever, when the airscrew
          blades are held at their maximum coarse pitch angles and
          the airscrew functions as a fixed airscrew.
          
     17.  Radiator flap control

          The flap at the outlet end of the radiator duct is
          operated by a lever (40) and ratchet on the left hand
          side of the cockpit.  To open the flap, the lever should
          be pushed forward after releasing the ratchet by depressing
          the knob at the top of the lever.   The normal minimum drag
          position of the flap lever for level flight is shown by a
          red triangle on the top of the map case fitted beside the
          lever.   A notch beyond the normal position in the aft
          direction provides a position of the lever when the warm
          air is diverted through ducts into the main planes for
          heating the guns at high altitude.
          
     18.  Slow-running cut-out

          The control on the carburettor is operated by pulling the
          ring (74) on the right hand side of the instrument panel.
          
     19.  Fuel cock controls and contents gauges

          The fuel cock controls (38 and 39), one for each tank,
          are fitted at the bottom of the instrument panel.   With
          the levers in the up position the cocks are open.
          Either tank can be isolated, if necessary.   The fuel
          contents gauge (46) on the instrument panel indicates
          the contents of the lower tank, but only when the
          adjacent push button is pressed.
          
     20.  Fuel priming pump

          A hand-operated pump (44) for priming the engine is
          mounted below the right hand side of the instrument
          panel.
           
     21.  Ignition switches

          The ignition switches (17) are on the left hand bottom
          corner of the instrument panel.
          
     F.S/4