Originally Posted by BOAC
You tell it. )
Sure, during align it knows it should be stationary. But my understanding is that if you stop during taxy for 3 mins+ it starts to resolve those ground speeds again - how?
Ref - park brake; Been there:
P1 "OK park brake off"
P2 "NO WAIT...the INS is still in align!!"
P1 "It's OK we didnt move, put it in NAV now"
P2 "Yeah, should be OK it's in NAV now"
The rest was history with 800 kt ground speeds - doh!