RST Engineering wrote:
C'mon Roy, you've been around airplanes long enough to know the real
answer -- "Why that compass card has been in the airplane since I bought
it."


Same reaction here. Doesn't everyone here have at least two GPS's
onboard that show a ground track bearing 10 times better than the
compass? No lecture about the difference between heading and ground
track please. We're all adults here.

In real life, ATC just wants you to fly from point A to point B in a
straight line. If you're being vectored in anything slower than 250
knots, ATC can't care less if you're flying a 180 degree track bearing
instead of holding a wobbling 185 heading in a 15 knots bumpy
crosswind. They eyeball your radar track after drinking half cup of
coffee, and turn you 10 degrees if need to.