PPRuNe Forums - View Single Post - navigation using true or magnetic
View Single Post
Old 13th May 2015, 00:12
  #4 (permalink)  
compressor stall
 
Join Date: Feb 2000
Location: 500 miles from Chaikhosi, Yogistan
Posts: 4,297
Received 139 Likes on 63 Posts
Polar nav

Airbus aircraft can be fitted with a polar nav button that changes the Nav System display from the default Mag to True (and grid).

Used above 78N (IIRC) and below 60S.

I'm sure Boeing have similar.

Otherwise it's out with the astrocompass....

Last edited by compressor stall; 13th May 2015 at 01:23.
compressor stall is online now