How many minutes prior to aircraft movement should the EGI be turned on to achieve proper alignment?

Study for the Mission System Operator Test. Practice with flashcards and multiple choice questions complete with hints and explanations. Prepare for your success!

Multiple Choice

How many minutes prior to aircraft movement should the EGI be turned on to achieve proper alignment?

Explanation:
EGI alignment needs a short warm-up period to initialize its inertial sensors and lock onto the proper reference frame using gravity and GPS data. Turning it on several minutes before movement lets the system perform the initial alignment and sensor warm-up, so the attitude and position data are accurate when you start taxiing or flying. If you start moving before alignment finishes, nav accuracy can degrade, causing errors in heading, attitude, and position output. Five minutes is the standard pre-movement time that provides enough opportunity for a complete alignment, whereas shorter times may be insufficient and longer times are usually unnecessary unless the system requires it.

EGI alignment needs a short warm-up period to initialize its inertial sensors and lock onto the proper reference frame using gravity and GPS data. Turning it on several minutes before movement lets the system perform the initial alignment and sensor warm-up, so the attitude and position data are accurate when you start taxiing or flying. If you start moving before alignment finishes, nav accuracy can degrade, causing errors in heading, attitude, and position output. Five minutes is the standard pre-movement time that provides enough opportunity for a complete alignment, whereas shorter times may be insufficient and longer times are usually unnecessary unless the system requires it.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy