T.O. BMS1F-16CM-1
BMS 4.34 Change 2.00
BMS 4.34 Dash 1
© Red Dog 2012-2019
Page: 118
JFS status can now be determined by the JFS light, which is implemented realistically in 4.34:
•
Steady: JFS operating normally (light on happens when JFS reaches nominal speed).
•
1 Hz flashing (once per second): JFS overheating after running for 4 minutes on the ground.
•
2 Hz flashing (twice per second): JFS failure due to running for over 8 minutes on the ground.
Please note, max operating time of the JFS is 4 minutes. Using it for longer time may induce
overheating conditions.
1.6.6. Engine Warning & Caution lights
The ENGINE FAULT caution light indicates a PFL (Pilot Fault List) item listed. The caution light will go
off when the fault is acknowledged.
The SEC caution light illuminates when the engine is operating in SEC (Secondary) mode of
operation.
The EEC and BUC caution lights are deactivated (may come on during tests) but bear no real
significance.
The HYD/OIL PRESS warning light (right eyebrow) is used to monitor the engine oil and hydraulic
system pressure. For engine oil pressure the light comes on when the pressure has been below 10 psi
for 30 seconds (this delay minimizes false warnings due to manoeuvring). The light goes off when
pressure exceeds 20 psi.
For hydraulic pressure the light goes on when either A or B system decreases below 1000 psi.
At ramp start the light usually goes off before reaching idle RPM but it is within acceptable limits if the
light goes off before exceeding 70% RPM.
The ENGINE warning light illuminates when RPM and FTIT indicate an engine over temperature or a
flameout has occurred. It could also light in the case of RPM and/or FTIT indicator failure. The warning
light illuminates when the RPM decreases below 55% or approximately 2 seconds after FTIT exceeds
1100°C.
1.6.7. Engine instruments
The RPM indicator expresses RPM in percent and is powered by the battery bus.
The NOZ POS indicator gives the position of the exhaust nozzle in percent (0%=closed 100%=open).
This indicator is powered by the emergency bus.
The FTIT indicator displays average FTIT temperature in degree Celsius from 200 to 1200°C. It is
powered by the battery bus.
The fuel flow indicator displays the total fuel flow to the engine, including AB. This indicator has a
range of 0 to 80000 pph. It is powered by the emergency buses.
The OIL pressure indicator displays oil pressure from 0 to 100 psi and is also powered by the
emergency buses.
1.6.8. Throttle
The engine is controlled by the throttle with detents at OFF, IDLE, MIL and AB.
The OFF (CUTOFF) position terminates engine ignition and fuel flow.
The IDLE position commands minimum thrust (which may be enough to move a lightly loaded jet).
From IDLE to MIL the throttle controls the output of the engine.
Past MIL the throttle modulates the use of the afterburner.
Normally the real jet does not need to depress an idle detent to be started or shut down.
In CUTOFF the throttle is lifted vertically and advancing and lowering the handle to the idle point starts
the engine, once the JFS has increased the RPM to 20%. The idle detent was invented in Falcon to
overcome the lack of CUTOFF position on most hardware throttles.
To shut down the engine the handle is simply brought over the idle detent and lifted vertically, shutting
down the ignition and starving the engine of fuel.
Summary of Contents for F-16C/D 4.34
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