A.P. 4099E.-P.N.
Pilots's Notes
PART II
HANDLING
27. Management of the fuel system
(i) The internal and wing drop tanks all feed the engine,
when the low and high-pressure fuel cocks are in the ON
position.
(ii) The booster pump should be switched on for starting and
left on at all times when the engine is running.
28. Starting the engine
(i) After carrying out the external, internal and cockpit checks
A.L.3 detailed in the Pilot's Check List, confirm:-
Para. 28 Master switch ... ... FLIGHT
(i) | Throttle ... ... Fully closed or *1" open
Low pressure fuel cock ... ON
High pressure fuel cock ... ON
Booster pump ... ON (Fuel pressure warning
light out).
| *When Mod. 921 is incorporated. The throttle should be closed
| as soon as idling r.p.m. have been attained.
(ii) Have a 230 ampere-hour, 24-volt ground starter battery
plugged in and switched on. It is essential that the
starter battery be fully charged; otherwise it will not
accelerate the engine to idling speed after "light up."
(iii)Switch on the interlinked starter-master switches and
press the engine starting pushbutton, releasing it after
two seconds.
A.L.3 | (iv) As soon as the burners light up, switch on the auxiliary starting switch if
Para. 28 | applicable, and close the throttle, if opened, as soon as idling r.p.m. have been
(iv) | attained.
(v) The engine r.p.m. should then accelerate to the idling
setting (3,000 ± 200).
A.L.2 (vi) When the engine is running steadily at the idling setting, check
Para. 28 | that the jet pipe temperature settles down to not more than
(vi) | 600°C. Have the ground starter battery switched off and discon-
| nected, switch off the interlinked starter master switches and the
| auxiliary starting switch, if necessary.
(vii)If the burners fail to light up or the r.p.m. do not accel-
erate to the idling setting, the engine should be shut down
as follows:-
22
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