NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: aircraft magnetic compasses
From: George Huxtable
Date: 2005 Feb 3, 01:31 +0000
From: George Huxtable
Date: 2005 Feb 3, 01:31 +0000
Thanks to Paul Hirose for such a full account of the use of magnetic compasses in modern aircraft. Isn't it true that magnetic bearings also enter into the labelling of runways? I seem to remember that at airfields I've passed through, each runway has a signpost with two numbers on, which differ by 18, and presumably these are the approximate magnetic bearings of the runway, in units of 10 degrees, for the runway when used in the two directions which differ by 180 degrees. Presumably these bearings might have to be altered now and again as the variation alters. George. ================================================================ contact George Huxtable by email at george@huxtable.u-net.com, by phone at 01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK. ================================================================
