I think you got me here, I cannot gin up a reference frame alibi. Let me
try this:

The airplane turns due to the horizontal component of lift. If the
horizontal component of lift
is exactly equal and opposite the apparent centrifugal force (a coordinated
turn) can the airplane
depart?

Regards
Todd

"Jose" wrote in message
. net...
Can a certificated airplane depart if the ball is precisely in the
middle[?]

If the airplane is changing heading, then it is yawing, irrespective of
the ball's position.

Jose
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