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I read with great interest all the comments about stalls and found them to
be extremely valuable. I see that as one of the few things that really set
an "experimental" apart from the certified - all the other risks can be
resolved. Some comments were less helpful than others:
<<The reason most pilots on this list are afraid to stall their Lancairs is
because what they know about flying doesn't amount to d___. Dropping a wing
in a stall does not lead to a spin.>>
Fearing a stall seems to me a healthy thing, not a sign of ignorance. The
two statements above also don't exactly match - the fact that the aircraft
"drops" a wing is an indication that one wing stalled before the other.
Last I heard a spin is DEFINED as one wing stalled and the other not and
therefore a wing dropping is a precursor to a spin. The reason to fear such
a thing is that a spin is maybe one of two conditions that are perfectly
stable (sitting on the ramp is the other). I read that the original mail
pilots used to spin down through cloud layers as that was known as a stable
flight condition. Therefore, it takes positive action to recover. One
reason I opted for an ES is that it has a sister ship that is certified and
anything really bad would presumably be corrected on both. Then I learned
that the certified version has a completely different airfoil, making stall
and spin information non-transferable. Further I learned that the IV and ES
(and the 320/360?) share the same airfoil - the ES just has a lot more of
it. With the same size vertical tail I would think that the ES would be
inherently LESS stable about the yaw axis and LESS recoverable from a spin
as the leverage of the wing holding it into a spin is greater.
The comments from the experienced ES drivers is very reassuring - I am more
happy than ever with my choice. One more question - I assume that the stall
strips to be added go on both wings in the same locations? I think that's
what the instructions say. One more comment and question: The recent fatal
ES crash appears to be a classic low altitude stall/spin event, maybe right
after a power failure - is there any more information about this? As far as
I can tell, if you include the Columbia, that makes two, the other one being
the standard IFR "descent below minimums" accident.
Gary Casey
ES project, one of those not-too-experienced 1500-hour, not too bold and
apparently not too bright pilots as I have a well-developed fear of
stalls/spins.
ps: Regarding the Glasair crash while S-turning on final, a maneuver often
taught and used: Flying a heading 20 degrees either side of the intended
path only increases the distance traveled by 6 percent. Doing an S-turn by
turning through 40 degrees will increase the path length by way LESS than 6
percent as very little time is spent at 20 degrees off course. The
conclusion to be made is that S-turns are a very, very poor way of
lengthening the distance to the runway. You do a lot of turning for very
little effect, and all these unstabilized movements are creating
opportunities for error. I make it a practice of either making a 90-degree
turn (one huge half-S turn....) if there is room or going around. Most
"S-turns" I observe are little more than rocking the wings, just creating
drag, slowing the airplane and....end of story.
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