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2 Answers

AHRS – Directional Gyro Mode

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Aircraft Systems

What is the purpose of the 'Directional Gyro' (DG) mode in an AHRS and when would this mode typically be used?

Thanks

 

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2 Answers



  1. Dave M on Aug 05, 2017

    Sometimes AHRS can be confused by metal/magnetic fields. The departure end of RWY 3 at KLGA can have this effect because of the metal used to extend the runway. Gyros won’t be affected by this. Once airborne, you can switch back to AHRS.

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  2. Charles22 on Aug 05, 2017

    Thanks, Dave.

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