Hi Graham,
I seem to recall in conversations with Ivan or Andy or someone that the
original design criteria was for 30 degrees of flap deflection, but
ultimately all that could be achieved mechanically was 27 degrees.
Do you have any recollections of this, or is it just "hanger talk" that I
have remembered and got tangled up in my aging neurons ? Can you confirm or
dispel this?
I do know from my experiments of trying to get negative flap defection, I
could never extend the range of travel past 27 degrees, despite making
several FL21 horns. Just as an aside Bud has told me with the elliptical
lift distribution on the wing that negative flaps probably wouldn't buy me
much anyway.
Micheal once upon a time, way back when I owned a Cessna 150 that had 40
degrees of flap. I remember that I could really land it in a short
distance, but it used to drop out of the sky like a man hole cover, and if I
tried to do a go around I had t retract some flaps otherwise it wouldn't
climb. I can say that can replicate the same short landings in my Europa
but I have to really focus on the approach speed.
I do have a question though, I was wondering way you are unable to achieve
27 degrees of flap deflection.
BTW, I can confirm that keeping a little power on helps with the airflow
over the stabilizer and you can slow the aircraft down a little more,
however you don't want to get too far behind the power curve that your
engine / propeller combination won't pull you back if you need to power up
and go around. I have a 914 / Airmaster and I find that anything below 55
knots gets little tricky. I'd suggest you try experimenting at altitude to
get a feel of what its like.
As they say, "your mileage may vary", take it easy and fly safe.
Cheers, Paul
On Wed, Jun 10, 2009 at 6:07 PM, Graham Singleton <
grahamsingleton@btinternet.com> wrote:
> I am good thank you, I trust you are well. I wish that I lived near
> Grenoble!
> I think your idea would be OK. Remember that at these deflections the flap
> is producing a lot of drag.
> I recommend when you land at these lower speeds you leave some power on,
> increased power will reduce stall speed but you will need to be very careful
> especially in gusty weather. A strong gust can instantly stall the airplane.
> Graham
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