e. Radio altimeter DH SET control Set to
f. Radio altimeter TEST switch Press and
hold. "Minimum, minimum" will be
illumination of the VA FAIL light.
g. Radio altimeter TEST switch Release.
12. Avionics Check and set as required.
13. Flaps Check.
14. Altimeters Set and checked.
Taxi speed can be effectively controlled by the
use of power application and the use of the variable
pitch propellers in the BETA range. Normal turns may
be made with the steerable nose wheel; however, a
turn may be tightened by using full rudder and inside
brake as necessary. Turns should not be started with
brakes alone, nor should the aircraft be pivoted
sharply on one main gear.
If the aircraft must be taxied in conditions of mud,
tall grass, or other conditions of high surface friction,
taxi at a slow but steady speed using power as
necessary and minimum braking. Hold the yoke full aft
to reduce pressure on the nose wheel. Attempt to
prevent unnecessary stops on a soft surface.
1. Brakes Check.
For safety, the PF should primarily focus
his attention outside the aircraft. The PNF
should check the flight instruments.
2. Flight instruments Check for normal
8-30. ENGINE RUNUP.
Monitor oil temperature closely during
FEATHER due to lack of air flow over oil
1. Parking brake As required.
2. Propeller feathering Check by pulling
propeller levers aft through detent to
FEATHER. Check that propeller will feather
and advance levers to the HIGH RPM
3. AUTOFEATHER/AUTO IGNITION Check.
a. Condition levers LOW IDLE.
b. ENG AUTO IGN Switches On.
c. AUTOFEATHER switch Hold to TEST.
d. POWER levers Advance until IGN ON
AUTOFEATHER lights are illuminated,
approximately 22% torque.
e. #1 POWER lever Retard and check.
AUTOFEATHER light out, #1 IGN
ON light illuminated.
AUTOFEATHER lights out (propeller
starts to feather).
f. #1 POWER lever Approximately 22%
g. Repeat steps a. through f. for #2 engine.
propeller feathers and both IGN ON
i. AUTOFEATHER switch ARMED.
j. ENG AUTO IGN switches OFF.
4. Overspeed governors and rudder boost
Check as required.
a. RUDDER BOOST switch On.
b. PROP levers HIGH RPM.
c. PROP GOV TEST switch Hold in TEST
d. Left POWER lever Increase until
1910 RPM. Continue to increase until
rudder movement is noted. (Observe
ITT and torque limits.)
e. POWER lever Retard to IDLE.
f. Repeat steps c., d., and e. for the right
5. Primary governors Check as follows:
a. POWER Set 1800 RPM.