I'd suggest this definition of a spin which I'm paraphrasing from Stick
and Rudder:

When there is an asymmetric stall of the wings, resulting in
autorotation around the more stalled wing, the aircraft is in a spin.

------------

The Coupe gets stalled air beginning at the wing root with full up
elevator travel.  This happens at higher power, especially on the C & D
models that do not have the slipstream cutout in the elevator.  Yet,
enough of the wing is still flying that, in all conditions, control can
be maintained or recovered.

Sure you could enter a spin by getting a deep stall such as in a
hammer-head stall.  Yet, if the plane is within specs & CG, there should
be no way the plane can continue to autorotate out of control.

Even full back elevator, full right aileron and left rudder (on a
3-control) and high power setting should not be able to keep the wings
(asymmetrically) stalled enough to keep autorotating. With linked
controls you can't make the conditions anyway near that bad.  I tested
this on my 415-D. (Caveat: I chickened out on _fully_ _cross_ _control_
testing at 1400 lb. gross weight at about two hundred rpm below max
power on my straight elevator 415-D with 9 degree of up-travel.)

I think, IMHO, that if you are unhappy with the 9 degrees of up travel
on a 415-D, don't use 13 degrees.  Instead, buy or have modified your
elevator to have the cutout.  Then the slipstream goes mostly through
the cutout removing that high power condition as a problem.  With that
elevator, you can have 20 degrees of up travel allowing the slightly
slower landing speed you would have gotten with 13 degrees.

-- 
Ed Burkhead
Peoria, Ill.
N3802H

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