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Old March 12th 08, 07:46 PM posted to rec.aviation.piloting
Jim Stewart
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Posts: 437
Default Turn to Final - Keeping Ball Centered

Dudley Henriques wrote:
Jim Stewart wrote:
skym wrote:
While making a turn to base and final recently, I was aware that I was
going to be wide with my normal turn from downwind through base to
final, so I banked more to keep as close to the runway centerline as
possible. I kept thinking about the infamous and usually fatal stall/
spin by some pilots in this situation, I kept thinking that if I keep
the ball centered, even with a very steep bank, that I would be ok and
not auger in. Some of you instructors and old pros...is this correct?
(Not that I intend to make it a practice.)


I hesitate to add to this discussion because
I'm not an instructor, just a rather slow
student who's not qualified to give advice
that might kill someone.

My instructor carefully pointed out the difference
between a stall on final as opposed to a snap
spin. A stall might be recoverable with no more
damage than a looseness of the bowels whereas
a spin could really fsk up your day.

The gist of his advice was that if you keep the
turn coordinated or even add a little extra
aileron, the up wing will have to come all the
way down through level before it will spin,
giving you time get the nose down and level the
wings before that spin can develop.

OTOH, a flat turn to final can quickly develop
into a spin before you can get it under control.

Any stall in the pattern can be a serious problem. You need stall and
yaw rate to induce spin. Of all the possible scenarios to have if you
manage to be ham handed enough to get into a stall in the pattern, a
stall from a slip is the most anti-spin. Then comes a coordinated stall
with no yaw induced at the break, and finally the worst condition is a
stall from a skidding turn. No matter which scenario, angle of attack
MUST be lowered, and any yaw rate MUST be neutralized IMMEDIATELY!


You put it better than I could. Thanks.