PPRuNe Forums - View Single Post - Artificial horizon Vs VSI instrument flying straight and level
Old 11th Feb 2018, 17:33
  #11 (permalink)  
India Four Two
 
Join Date: Jun 2002
Location: Manchester MAN
Posts: 6,644
Received 74 Likes on 46 Posts
It’s usually vacuum driven same as the DI and susceptible to precession also.
B2N2,

Can you expand on that? I was taught that for all practical purposes, the AH does not precess, because of the pendulous vanes.
India Four Two is offline