Originally Posted by
Vessbot
Yes, there will be, for the reason explained by the math I posted.
What's the groundspeed before the turn? -499
What's the groundspeed after the turn? 501
The difference is 1000.
Ummm, if a person in an airliner with a velocity of +500 knots is walking toward the tail at 1 knot, his groundspeed is +499 knots, not -499 knots