accordance with the weight sheet summary and ascertain that the aeroplane
is in all other respects fit for flight.
PRELIMINARIES
3. Before starting the engine, check the following:
(i) That the ignition switches are OFF;
(ii) That undercarriage, tail wheel, and flap selectors are in NEUTRAL;
(iii) That constant speed toggle switch on control panel is ON; i.e., in
"Automatic Control".
(iv) That wheel brakes are ON
(v) Switch on main battery switch and check undercarriage, tail wheel and
flap indicator
(vi) Turn on fuel and check fuel tanks for contents
(vii) Check controls for free movement.
STARTING ENGINE AND WARMING UP
Note: For main engine details see Handbooks and paragraph 27 of these
Notes.
4. (i) If engine has been standing, turn over by hand.
(ii) Turn carburetor air to "COLD", radiator shutters to "SHUT".
(iii) C.P. control to 2800 r.p.m.
(iv) Throttle to give approximately 800 r.p.m.
(v) Mixture control to idle cut-off. (See note)
(vi) Wobble pump to 4 lbs. pressure.
(vii) Prime engine with two to four strokes
(viii) Mixture control to FULL RICH
(ix) Switch ON
(x) Push heel on starter pedal to energize starter.
(xi) When starter has reached sufficient speed, push down toe of starter
pedal to engage.
Note:- Do not increase fuel pressure above 4 lbs. with the mixture control
out of the idle cut-out position. If necessary, prime the engine to keep
it from stalling, as pumping the throttle does not prime the engine.
TESTING ENGINE AND INSTALLATION
5. (i) Warm up at 800 to 1000 r.p.m.
(ii) Minimum oil temperature before running up over 40°C. - Maximum 85°C.
(iii) Oil pressure - 60 to 80 lbs.
(iv) Radiator temperature for running up - 80°C.
(v) Whilst warming up the engine, check the operation of the flaps.
(vi) Set propeller switch to "manual selective".
(vii) Check the functioning of the engine and magnetos at 2200 r.p.m. and
Summary of Contents for P-40 Tomahawk
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