I'll try to answer the best I can right now. I am not fully tested and
don't want to mislead anyone.
My flaps are my interpretation of an idea that Mark Langford has
on his web site. They are split flaps embedded in the stub wings. they
are as big as I could possibly make them I think 10" x 20". They are
completely flush when closed and you would be hard pressed looking at the
plane to know that they even were there. They are mounted to a piano
hinge that is mounted to a small spar embedded in the stub wing.
They operate by way of a stock RR flap handle to a torque that runs in
front of the rear spar to the stub wings just outside of the fuselage. To
a linkage rod and to a control horn on the flap. I have 3 positions of
roughly 15, 25, and 40 deg. of deflection.
The first notch is noticeable in a change in drag. The 2nd is
more drag and a slight pitch change. third is noticeable in decent angle.
I did the first few landings without the flaps and it was an adventure to
say the least. The plane needs something to slow it down and burn off
it's extra energy. I did some research before I decided to take Mark's
Idea and run with it but it was more work to get it installed than a
belly board and the belly board most likely has more effect than my set
up does. Even so I may limit the use of the third notch to calm or light
wind landings.
Thanks Mark L. for the help from your web site.
Cris - hope this helps.
Joe Horton, Coopersburg, PA.
joe.kr2s.buil...@juno.com
On Sun, 20 Nov 2005 11:11:22 +0100 "Cris." <flyi...@gmail.com> writes:
Hi, Joe, I saw your message on the KR mailing list and noticed you were
talking about flaps.
May I ask you if your flaps are the ones described on the plans?
If positive, can you tell me what real advantages they give you?
Shorter landings? Additional drag? Better visibility because you can fly
the final with nose a little bit more down?
Would you advise flaps instead of the belly board? I flew a KR2S three
weeks ago and could see thet it tends to eat up a lot of runway during
landings (well, my friend landed it on a 600 metres grass strip anyway)
and I do not know if those small flaps can do a reasonable work.
Thank you and happy landings!
Cris.
--
Land the airplane, rubber side down, main wheels first.
Joe Horton, Coopersburg, PA.
joe.kr2s.buil...@juno.com
