Stall Strips vs ThermaWing Deice
System
If a builder wishes to add ThermaWing deice system later, can
this be done with the Stall Strips installed? Seems the answer
would be "no" based on thin membrane placement on the
leading edge. Something to consult the Magic Eight Ball
regarding your future.
Jeff L
LIVP
I did not install stall strips ³because
it was not the manly thing to do.² J Actually, I had
already finished and painted the wings before this was even discussed
very much, and I was reluctant to do this afterward and re-paint the
wings. If I had it to do over again, I would add stall strips, and I
encourage you to do this. They cause absolutely no speed, weight or
other penalty, and could be a life saver. I do have an AOA Pro system
and have calibrated it for my airplane. This is something to consider
also. My airplane stalls very well/straight ahead, but most roll prior
to a full stall, some violently. I believe in exploring the approach
to stall for these aircraft, and even a full stall, IF THE AIRPLANE
BEHAVES WELL in the approach testing and WITH CAREFUL PLANNING AND AN
EXPERIENCED LANCAIR IP/PILOT. This is definitely not something you
want to do on the first few flights! There are some very good Lancair
instructors around that will take you through stall testing if you¹d
like. Again, please, not by yourselfŠ
From: Lancair Mailing List
[mailto:lml@lancaironline.net] On Behalf Of Bill Wade
Sent: Friday, March 11, 2011 10:26 AM
To: lml@lancaironline.net
Subject: [LML] Re: Reality check
Hi Bob- some other
thoughts-
As I moved the mains in and out, checking wheel well clearances,
I started thinking about how retracting those suckers might
affect CG. A lot of weight on long arms, moved aft. The nose gear as
well, perhaps to a lesser extent. When I do the W&B I may try to
measure both extended and retracted conditions (with suitable
safeguards). In the event of a spin do you suppose extending the gear
might help recovery?
Speaking of which- did you install
stall strips?
I like your idea of the spacers
and I'll install some when the time comes- I'll also move the power
pack. As you say, a little weight in the rear could compensate if
needed.
If there's not much difference
between the two styles I may use the 0/90 for the baggage floor. I cut
the gear area bulkhead from the +/-45, and that leaves
enough length to cut the RH armrest. Pete Sinclair (ES-P) told me to
reinforce that with 6 BID top and bottom (if I understood
correctly) to reduce ballooning of the fuselage when pressurized.
Did you do that? -Bill
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