relax.jet
30th Nov 2006, 20:06
Hello fellow pilots,
other day, we had radio altimeter on r/h side (B737NG) inop.
I was just wondering, for what does one autopilot (1ch app) need radio altimeter?
(Just an theoretical question. It would be nice to know why?)
DDPG says: With radio altimeter(s) inoperative, do not use the associated autopilot or autothrottle for approach and
landing.
That`s clear, but why?
(Isn`t it just some kind of selftest? Autopilot is probably doing it like for dual ch app....?)
Thnx, for you judgement.
be relaxed
other day, we had radio altimeter on r/h side (B737NG) inop.
I was just wondering, for what does one autopilot (1ch app) need radio altimeter?
(Just an theoretical question. It would be nice to know why?)
DDPG says: With radio altimeter(s) inoperative, do not use the associated autopilot or autothrottle for approach and
landing.
That`s clear, but why?
(Isn`t it just some kind of selftest? Autopilot is probably doing it like for dual ch app....?)
Thnx, for you judgement.
be relaxed