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		           PART III - HANDLING

                  familiar with starting procedure all starts should
                  be supervised.

       (i)  Check that the ground starter is giving full power, then
            wait at least 30 seconds after the single phase inverter
            warning light (MAIN RADAR) goes out to allow the
            inverter to cut in and the fuel flow amplifier to warm
            up.  Without this warming-up period, the fuel flowmeter
            may not indicate, in which case it cannot be used to regu-
            late the fuel flow during starting.
       (ii) Start the engine as follows:-
            (a)  Recheck that the throttle is fully back (OFF).
            (b)  Switch ON the engine master switch and leave it on
                 for the remainder of the flight.
            (c)  Hold the battery starter switch momentarily at
                 STARTER, then move to BATTERY, and leave it
                 in this position for the remainder of the flight.
            (d)  At 3 per cent. r.p.m. move the throttle outboard to
                 energize the booster pumps and igniter plugs.
            (e)  At 6 per cent. r.p.m. advance the throttle firmly,
                 using both hands for accurate control, to obtain a
                 fuel flow of 500-700 lb./hr.  Maintain this flow until
                 the light-up takes place.
            (f)  After the light-up the j.p.t. rises rapidly and must be
                 allowed to stabilize before the throttle is opened
                 further  If the j.p.t. rise is rapid and likely to
                 exceed the limit, throttle back slightly.
            (g)  Once the j.p.t. has stabilized, open the throttle as
                 rapidly as possible to the idling position but keep the
                 j.p.t. between 600°C and 690°C.  Higher tempera-
                 tures may be reached but these are not harmful if
                 of brief duration and are less than 870°C.
            (h)  Idling r.p.m. vary between 34 per cent. and 38 per
                 cent.
            (j)  If there is no reading on the oil pressure gauge
                 within 30 seconds stop the engine.
            NOTE.-(a)  If the engine does not begin to turn as soon
                       as the starter is engaged, that is, there is no
                       audible indication and the r.p.m. gauge fails
                       to register within a few seconds, the PUSH
                       TO STOP STARTER button must be
                       pressed at once or the starter will be
                       damaged.
                  (b)  If in an attempt to prevent the j.p.t. rising
                       excessively, the throttle is moved back too
                       far, the flame will go out and dense clouds

37

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