(9) Propeller circuit breakers (fig. 4--5) ON

(10) Propeller feathering switches (fig. 4-13) NORMAL

(11) Mixture (fig. 4-6) IDLE CUTOFF

(12) Oil cooler flap switches (fig. 5-17) AUTOMATIC

(13) Generator switch (fig. 5-17 or 8-11) ON

(14) Coolant flap overide switches (fig. 5-13)

(15) Intercooler flaps (fig. 5-12) OPEN (if installed)

(16) Gun-sight light (fig. 5-10) operating and seat adjusted so that the sight reflection is easily visible.

(17) Inverter switch (fig. 5-9) (or compass switch on main switch box) ON

(18) Contactor heater ON if contactor is to be used during the flight

(19) Armament switch (on control column) OFF

(20) Fuel quantity (fig. 8-20 and 21) adequate. Check the fuel level in outer wing tanks by pressing the low level test button (fig. 12-4), or (on modified airplanes), by operating the low level test switch on the side of the warning light box).

(21) Turbo-supercharged warning lights functioning (if installed)

(22) Carburetor air filters (fig. 4-8) AS REQUIRED

NOTE: The use of carburetor air filters reduces the critical altitude and range of the airplane and should be avoided in clear air.

(23) Clock and altimeter set

(24) SPECIAL CHECK FOR NIGHT FLYING - Test by operating

(I) Landing lights (fig. 5-7) (not more than 5 sec. for test)

(2) Recognition lights (fig. 7-13) (not more than 10 secs. for test)

(3) Cockpit lights (fig. 5-11)

(4) Fluorescent light (fig. 5-5)

(5) Position lights (fig. 5-6)

(6) Spot light (fig. 4-1)

FUEL MANAGEMENT (SYSTEM)

GENERAL:

On unmodified airplanes fuel is supplied to each engine by an engine driven fuel pump and one master booster pump which draws fuel from either the main reserve or dropable tank depending on the setting of the selector valve. (An additional booster pump for the outer wing tank is installed on airplanes equipped with these tanks). On modified airplanes, fuel is supplied to each engine by an engine driven fuel pump and an individual booster pump for each tank. The dropable tanks on modified airplanes arc also pressurized to five to seven pounds per square inch.