Piperboy, If you flew north for an hour was that on the wet compass or the GPS?
Frinstance in a westerly of 15knots you will be 15nm east of where you thought in a hour if yr on the wet compass. If you then turn round & fly south on the wet compass fr another hour yr gonna be 30nm East of home, or thereabouts, aren't you? So the GPS go to is telling you where home really is innit? Never mind all this wind triangle deviation gobbledegook.
