--- Begin Forwarded Message --- Date: Mon, 09 Oct 2000 17:31:06 -0400 From: Norman Johnson <[log in to unmask]> Subject: Magnetic Variation Sender: [log in to unmask] Hi, I saw this list of addresses on the web. I'm doing a flight planning spreadsheet for my personal use and need to find a formula to calculate (or estimate) magnetic variation for a given lat/long. I'm hoping that someone among you have that formula and would be willing to tell me what it is or at least point me to where I could find it. Thanks very much, Norman Johnson [log in to unmask]