Re: FAA To Finally Ditch Floppy Disks & Win-95

On Sun, 22 Jun 2025 21:55:47 GMT, Charlie Gibbs wrote:

Decimal degrees do make number crunching a lot easier.

Trig calculations are most easily done in radians.

If you want to have real fun with your Garmin set the datum to
NAD27. When he first started a geocacher was using that instead of
WGS 84. The coordinates were about 100 yards away, which is fun
when you're looking for a hidden ammo can on the side of a
mountain.

That 100 yards sounds about right for the distance between Greenwich
Observatory and the current location of the 0° longitude line ...