Question

When is the gyro interrupted in erection cutoff method?

(a) Deviation is large

(b) Deviation is low

(c) Never interrupted

(d) Always interrupted

I had been asked this question by my school teacher while I was bunking the class.

This interesting question is from Vertical & Heading References in chapter Air Data Systems, Altitude and Heading Reference of Avionics

Answer 1

Right answer is (a) Deviation is large

Explanation: The error caused in the vertical referencing can be rectified by introducing nonlinearities. One such method is the erection cutoff where the precession of the gyroscope is interrupted when a large deflection is sensed.