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CHAPTER FIVE
T-34C CONTACT
brakes, start the sweep second hand on the clock. Next, switch the starter to "ON" (check
voltage for minimum of 10 volts, ignition light on, fuel pressure light out, oil pressure indicated
and monitor N1.)
When N1 reaches 12%, move the condition lever out of the FUEL OFF position to the "feather"
(FTHR) position. Monitor Interstage Turbine Temperature (ITT) and N1 for start indications
(light off). Periodically scan the lineman in case of a fire indication. A rise in ITT should be
indicated within ten seconds and should not exceed 925 for more than two seconds on light off.
Secure the starter switch when N1 reaches 60% RPM.  Check the oil pressure for 40 psi
minimum and check N1 for 62-65%.
NOTE
Idle RPM (N1) as low as 60% is acceptable, but should be reported
to Maintenance after the flight. Idle RPM above 65% (or below
60%) is a downing discrepancy.
CAUTION
Do not introduce fuel before N1 reaches 12% or if N1 begins to
decrease. Start attempts with a weak battery are likely to cause
over-temperature damage to the engine. Use a Ground Power Unit
(GPU) if the starter is unable to produce at least 12% N1 under
battery power.
If a GPU was used, signal the plane captain to disconnect it. Place the condition lever to full
increase (INCR) and indicate a normal start to the plane captain by giving a "thumbs-up." Check
the generator annunciator light out and voltmeter indicating 27.0 - 29.5 volts; reset the generator
only if the annunciator light remains on. Turn the inverter switch to number 2 then number 1,
checking the inverter annunciator light out in both positions. Remain on number 1 inverter.
When ready to taxi out of the chocks (wait for the attitude gyro "OFF" flag to disappear), hold
the brakes, release the parking brake by pushing the parking brake knob in, then signal the plane
captain to remove the chocks. When given the "release brakes" signal, smoothly release brake
pressure and allow the aircraft to move ahead slowly. When signaled, apply the brakes for a
brake check, then pass control of the aircraft to the instructor to complete a brake check and
follow the plane captain's signals for positioning the aircraft. Your instructor will then pass
control of the aircraft back to you and you will complete the Pre-Taxi Checklist (TW-5) or taxi
to the pre-taxi area (TW-4).
NOTES
1.
Beta should not be used in close proximity to ground personnel.
2.
Watch lineman while chocks are being removed.
5-6 GROUND PROCEDURES


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