Falcon 2000 Limitations Practice Exam

During a light-off to idle in an airstart, what is the assisted duration?

90 sec 60 sec 180 sec 120 sec

Correct Answer:

90 sec

Explanation:

In an airstart, the engine is driven by external air until ignition is established and it can sustain running on its own. The assisted duration is the amount of time that external air will be supplied to help the engine reach light-off and spool up to idle. For this aircraft, that window is ninety seconds. This gives enough time for the engine to light off and accelerate to idle without overstressing the start system; if light-off hasn’t occurred within that period, the start is aborted and a new attempt is required.

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