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Eng Deice: The system prevents ice from forming in the
engine air inlet. If ice accumulation is suspected the pilot or gunner
ENG DEICE switch is placed in the DEICE position. This action causes the
hot air solenoid valve to route engine bleed air to the engine air
inlet. A rise in the turbine gas temperature (TGT) will occur when the
pilot or gunner ENG DEICE switch is in the DEICE position. De-ice
operation will become continuous if the hot air solenoid valve (ENG
DEICE) circuit fails or if ENG DEICE
circuit breaker is out (extended). |
The pilot or gunner GOV switches AUTO position
permits the overspeed governor to automatically control fuel metering and engine speeds (N1and
N2). The EMER position permits the pilot and gunner to manually control the
engine rpm. The governor circuit is powered by the dc essential bus and protected by the
GOV CONTR circuit breaker. |
CSL LT (Console lights), INST LT (Instrument lights) and
ARMT LT (Armament console) are rheostat knobs. Placing the knob in the
OFF position deactivates the light. The between OFF and BRT positions
control the brightness of the instrument, avionics, and control panels. |
LT Normal /
NVG
switch is a two-position type. This switch
will activate the night vision feature when placed in the NVG position
and the PLT OVRD switch is in the OFF position. The LTS switch is
de-activated when the PLT OVRD switch is in the PLT OVRD position. |
A solenoid operated idle stop is incorporated to prevent
inadvertent throttle closure. The idle stop is controlled by the pilot
Idle Stop Rel switch or the gunner IDLE Stop RELEASE switch. The engine
idle stop release circuit is powered by the dc essential bus and
protected by the IDLE STOP SOL circuit
breaker. |
The INCR-DECR switch is a three-position, momentary-type
switch. The switch is held forward to increase and aft to decrease the
power turbine speed. The circuit is powered by the dc essential bus and
protected by the GOV CONT circuit
breaker |
The ELEC PWR - EMER OFF switch in the ELEC PWR position
permits the pilot to control the electrical system. The switch in the
EMER OFF position removes all power from the electrical system. |