NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Variation of compass
From: Herbert Prinz
Date: 2002 Oct 3, 18:00 +0000
From: Herbert Prinz
Date: 2002 Oct 3, 18:00 +0000
I doubt very much that this is what Dave Weilacher wants. I thought that I had explained in my message re: Magnetic North Pole of Jan 11, 2002 that a magnetic compass does NOT point into the direction of the magnetic north pole. Incidentally, in the same message I already gave an answer also to Dave's more recent question about "sources to determine compass variation for your position at sea". The official source is still DMA chart 42, "Charts of the Earth's Magnetic Field". If you look at this chart you will see very clearly why a magnetic compass reading cannot be interpreted like one from a radio beacon finder. Herbert Prinz Michael Wescott wrote: > > Great circle is what you want, much the same as a fix on a radio beacon.