Originally Posted by
SJUAMMF
The GPS doesn't know whether wind is pushing or engine is pushing sir. It just know one speed sir.
Referenced to you earlier comment, what needs to be calibrated sir?
Did I say that GPS does or does not know about the wind?
FT God, give me patience!
I'll try one more time.
When you say your GPS tells you the speed f the aircraft is =, let's say, 500 miles an hour, what speed do you think that is?
If you still maintain that there is no difference between ground speed and air speed, please stop wasting my time. Go look at your physics book, ask some one, look up on the internet and educate yourself before you start arguing.
You need wind speed to calculate airspeed from the ground speed or vice versa.