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< if there is ONE trend I've seen among the "high HP" crowd it's this: a woefully inadequate use of rudder during large
power changes - particularly evident during go-arounds, missed approaches, and
the like. Deadly if you happened to be nearing the stall due to that increased
bank angle. (Stall+Yaw=Spin ---> more altitude than you have, if you're in
the pattern!)<
I second the comment above. It is great to see a Lancair rep. talking
about the importance of rudder as opposed to the "you need never touch the
rudder" sales statements of past years. The fact is that lots of right
rudder is required at high power settings when accompanied by higher AOAs. Sport aircraft are running nearly double the fatalities due to stall spins
as compared to Part 23 certified aircraft. The reasons are many but may
include:
1. Experimentals are not stall certified
2. Experimentals are not required to have active stall warners
3. Experimentals are not required to have the higher stability as required
on Part-23 aircraft
4. Experimentals are not certified spin resistant
5. Lancairs cruise faster which equates to higher stalling speeds
6. Higher powered singles generally require more rudder than their
underpowered sisters.
I hope that we can all agree that practicing recoveries from APPROACHES to
stalls is a very good thing. After all, this training is required for all
pilots by the FAA. However, practicing recoveries from FULL stalls may be
a good or bad idea depending upon the aircraft type, CG, GW, and pilot
experience.
I also hope that we can all agree that practicing spins in Lancairs would
be unwise unless we are prepared to loose our aircraft, are wearing a
parachute and have a way out. Besides it is in violation of FARs without
the parachute. If we agree on this point, then we must conclude that not
all aircraft are ideal for practicing FULL stalls because some lack spin
resistance and well behaved spin characteristics .
I must say, suggesting the requirement that we all explore the extremes of
our aircraft is bordering on irresponsible. We have enough insurance
problems without this poppycock.
James B. Frantz
Proprietary Software Systems, Inc. www.angle-of-attack.com
LFrantz@compuserve.com
(952) 474-4154
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