PART III-HANDLING
STARTING, TAXYING
AND TAKE-OFF
56. External cheeks
(a) The outside of the aircraft should be systematically
checked for obvious signs of damage, security of panels,
filler caps, doors, wheel fairings and belly tank. The
engine intakes and boundary layer bleeds must be free
from any obstruction or debris, and the jet pipe should
be checked for distortion. Oleos should be checked for
equal extension, the tyres for creep, excessive wear or
cuts, and the brake leads for damage. The pitot head
cover and the undercarriage ground locks must be
removed. Check the BUTT TEST switch and the GUN
FIRING GROUND TEST NOSEWHEEL RETRAC-
TION switch in the starboard wheel bay are set to OFF
and the locking bolt on the latter is in position. If the
retraction switch is ON with no pressure in the system
the nosewheel will retract when the engine is started.
(b) Check that the pressure gauges in the nosewheel bay read
as follows:-
Brake accumulator 1,750 lb./sq. in. min.
pressure
Anti-G pressure 1,800 lb./sq. in. max.
500 lb./sq. in. min.
(Max. consumption in one
flight).
57. Cockpit checks
(a) Strap in and then make the necessary oxygen, emergency
oxygen and anti-G suit connections. have the seat safety
pin removed and stowed and the emergency oxygen pin
removed. Then check:-
Belly tank jettison (3) Down and locked (irrespec-
tive of whether belly tank
fitted or not to prevent
fouling the H.P. cock).
AL1/57 Ignition circuit breaker IN
Undercarriage selector Down, button fully in.
(41)
Hood jettison indicator Safe. Pointer on line.
Armament switches Safe or off. 51
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