PART 1-DESCRIPTIVE

        socket on the starboard side is marked 24 VOLT
        GROUND STARTER SOCKET, and is wired only to
        the automatic engine starting system.
        (a)  When the master switch is set to GROUND, the
             electrical services are isolated from the generator
             and aircraft batteries.  The system (except the auto-
             matic starter) can be connected to a ground battery
             if this is plugged into the port socket.
        (b)  When the master switch is set to FLIGHT, all the
             electrical services, except the automatic engine start-
             ing system, are connected to the aircraft batteries.
             The automatic engine starting system can be
             operated if a 230 ampere-hour, 24-vol;t ground
             starter battery is plugged into the starboard socket,
             but only when the master switch is at FLIGHT.


   8.   Hydraulic system

   (i)  Hydraulic pressure, supplied by an engine-driven pump,
        is stored in a pressure accumulator, for the operation of
        the following:-
             Under carriage
             Flaps
             Dive brakes
   (ii) Sufficient pressure will be available in the accumulator
        for one complete one-way operation of the undercarriage
        or of the flaps after failure of the engine-driven hydraulic
        pump.
   (iii)A handpump (17) is provided on the left of the pilot's
        seat for use when accumulator pressure is not available.
        Operation of the handpump will transmit hydraulic fluid
        direct from a reserve supply in the reservoir to the jacks
        concerned-without going through the accumulator-
        under sufficient pressure to operate the undercarriage and
        flaps at a reduced rate.


   AIRCRAFT CONTROLS        

   9.   Undercarriage controls

   (i)  The undercarriage selector (1) is the longest of three
        levers extending from the rear face of the engine control
        box and has two positions, UP and DOWN.  When the
        wheels are on the ground it is locked in the DOWN posi-.


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