Originally Posted by
FlightDetent
A^2, do you really insist that flying a fixed pattern over the ground, there is no difference between still air and flowing air conditions?
No, I did not say that. Flying a hold is not a fixed pattern over the ground. It is two standard rate turns, one of them initiated at a fixed point, connected with straight legs. That is not the same as flying a fixed track over the ground. In fact, your track over the ground will be different with a significant wind than in still air. How exactly they are different depends on the direction and strength of the wind. However, for a wind aligned with your holding track, the
airspeed indication in your cockpit will be identical to the airspeed indication for the same hold in still air. .
I'm waiting for your answer to my questions above. To wit:
Lets start with basics. Assume a 100 kt airplane flying east in still air with 100 kt groundspeed (obviously). The airplane turns to a west heading. groundspeed is now 100 kt West
What is the velocity change from the east heading to the west heading?
Now, same airplane flying East in a 50 kt wind out of the East (direct headwind) at 50 kt GS. The airplane turns to a west heading. Groundspeed is now 150 kts.
What is the velocity change in this example?