PPRuNe Forums - View Single Post - Gen Nav Questions
Thread
:
Gen Nav Questions
View Single Post
23rd June 2012 | 15:42
#
20
(
permalink
)
keith williams
Joined:
Jan 2011
Posts:
660
Likes:
20
From:
England
The problem with question 2 isn’t just related the mathematics.
The McGraw-Hill Dictionary of Scientific and Technical Terms (see the link below) gives the following definition:
http://www.answers.com/topic/compass-deviation
(navigation) The difference between the readings of a compass which is without mechanical defects and is held motionless in space, and the same instrument when it is installed in the same geographic position but is mounted on a ship or aircraft;
deviation is a systematic error
which is compensated by placing iron bars in places about the compass; residual deviation errors are calibrated and noted on a card so it can be used by the pilot or navigator.
Reply
keith williams
View Public Profile
Find More Posts by keith williams