tail wheel which was left retracted.]
Before starting engine or taxiing, check landing gear lock by shifting
selector to "down" position and operating the hand pump until it is solid
to fore and aft movement. Return valve lever to neutral position.
8. Wing Flaps - The wing flaps are operated hydraulically by either the
hand pump or an electrically operated pump. The selector handle is located
on the port side of the cockpit beside the pilot's seat and moves fore and
after; - forward for "Down" and after for "Up" and neutral for "Off". The
hand operated hydraulic pump (see para. 7) may be worked back and forth to
raise or lower the flaps after the up or down position has been selected
on the handle. The flaps may be operated manually in order that partial
setting may be obtained more easily. With aid loads on the flaps they will
close automatically as soon as the selector switch is moved to the "Up"
position.
[ES: our flap control lever had a push button on the end which had to be
depressed in order to move the flap handle out of the neutral position.
When placed in the up position, the little finger was used to turn on the
electric hydraulic pump. The same switch was used to acctuate the
hydraulic pump both for the Flaps and Gear.]
NOTE: - Flap selector lever cannot be set to "Up" position until
undercarriage lever has been returned to neutral. [ES: We did not have
this type of flap control.]
9. Undercarriage and Flap Position Indicator - The position indicator is
located on the lower port side of the instrument board. The wheel and flap
images simulate the actual position of the landing wheels, tail wheel and
flaps. The images disappear from view when the electrical power is off,
thereby indicating failure of the instrument, or open battery or generator
circuit. The batter switch must be "On" to maintain operation of the
indicator. The battery switch should be "Off" before leaving the airplane.
Engine Controls
10. Throttle Quadrant - The throttle, automatic mixture and propeller
controls are located on the throttle quadrant. The mixture control locates
the automatic rich and automatic lean positions. Approximately the last
10° movement of the "lean" mixture on the quadrant is the engine "idle
cut-off" position. There is a spring stop included to prevent mixture
control from entering the "idle cut-off" position when normal pressure is
applied.
11. Airscrew Operating - This may be either "Automatic or "Manual
Selective". When on automatic control, a selected engine speed is held
constant by an engine driven governor. Speed selection is accomplished by
adjustment of the propeller control on the throttle quadrant, and the
toggle switch on the propeller control panel is in the "down" or "on"
position.
When on manual selective control, that is with switch in "Hand control"
position, the propeller acts as a controllable pitch propeller by the
operation of the "Increase R.P.M.", or "Decrease R.P.M." switch. Circuits
are independent of the governor so that if the governor fails the
propeller can be used as a multi-position controllable propeller.
Since the markings on the propeller control are for approximate settings,
the tachometer should be relied up to obtain the desired R.P.M.
General Operation: Automatic Control - Set toggle safety switch which is
of the circuit breaker type to "On" (Down) (automatic control) position at
all times that constant speed control by C.P. lever on throttle quadrant
is desired. (If the switch throws out it may be reset by turning to "Off"
then to "On". Successive throwing out will probably be an indication of
short circuit or overload and the switch should be left off, in this
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