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Old March 13th 08, 03:33 AM posted to rec.aviation.piloting
Peter Dohm
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Posts: 1,754
Default Turn to Final - Keeping Ball Centered

"WingFlaps" wrote in message
...
On Mar 13, 11:14 am, "Capt. Geoffrey Thorpe" The Sea Hawk At Wow Way
D0t C0m wrote:



Note: as others are beating to death - stall speed doesn't change with
bank.


Do you really mean that?


Cheers


Yes, he does; and yes, he is correct.

You have gone back to thinking in only two dimensions; and therefore
ignoring the effects of vertical acceleration.

Just as a theoretically simple example; consider the case of an aircraft
flying around in a circle, but the circle is an inclined plane relative to
the surface of the earth--rather than being horizontal. In that case, since
we speak of bank angle relative to the horizontal (referenced to the earth
at that location) the G-load (and therefore the stall speed) will be
greatest at the point on the circle where the bank angle is least--and this
will remain true even in the special case where the aircraft is able to fly
around the circle at a constant speed.

Peter