PART I-DESCRIPTIVE

          port tank; when set to EXTERNAL high volatility fuel
          can be drawn through the external connection on the
          port side of the fuselage.
          
     5.   Oil system

          A tank with a capacity of 4½ gallons of oil and 2 gallons
          air space, is mounted in the leading edge of the port outer
          plane, and the cooler is just inboard of it.   An air outlet
          shutter in the outer plane skin at the rear of the cooler
          may be closed by the ground crew to assist in warming up.

     6.   Oil dilution

          The switch for the oil dilution system is on the left-hand
          side of the instrument panel, and is the right-hand one of
          the two switches marked (9) in fig. 1.   On some aircraft
          the switch is a pushbutton, and on others it is a spring-
          loaded two-poition toggle switch.

     MAIN SERVICES

     7.   Electrical system

     (i)  An engine-driven generator charges two batteries which
          are behind the right-hand seat, and provide power at
          24 volts for the operation of:-
          Air intake and outside air thermometers.
          Engine fire warning light.
          Engine starting.
          Flaps indicator.
          Fuel booster pumps.
          Fuel contents gauges.
          Oil dilution valve.
          Oil temperature gauge.
          Pressure-head heater.
          Radio.
          Usual external and internal lighting.
          If required, two additional batteries can be carried be-
          hind the left-hand seat and are controlled by an ON-OFF
          switch on the left-hand side of the crash pylon.

    (ii)  A generator warning light (23) is mounted on the right
          of the main instrument panel (11) and indicates when the
          generator is not working.

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