6-7. Gas Producer Fuel Control - Deceleration Check
para 6-5 and 6-7
During rapid throttle movements,
make appropriate anti-torque
pedal corrections to prevent the
aircraft from turning on loose or
Deceleration check is only required
when using alternate fuel.
JP-5/JP-8 fuel is designated as the
Army alternate fuel to be used in the
T63-A-700. No deceleration time
restrictions are imposed on the
engine when the Army primary fuel
(JP-4) is used.
Deceleration check. Ground check the
fuel control system and associated
linkage by performing a deceleration
check. This check must be performed
with the engine at normal operating
Perform each step in the sequence
listed. Recheck the deceleration rate
after each step to determine if there
is a need for further correction.
Replace the fuel control if the
deceleration rate is still
unsatisfactory after all steps have
Turn generator switch off.
Rotate twist grip to full
open hole collective at flat
pitch and stabilize N2 at
exactly 103% (trim as