Well, as I said, that is how rumours start. It might have been his
perception that the ailerons were too stiff to move - but that is
impossible ! No matter how much load he put on the flapperons,
they would still give roll control if they were moved - and there
is no way that loading them could jam the mechanism as he claims.
If he believes that he can lower the flaps at a higher speed
or larger angle because they are split, he is wrong, and endangering
his Rebel. All he has accomplished is lightening the force required
to move the ailerons - as well as reducing their effectiveness by
one-half ! He has also made the flaps much less effective by
reducing their area. Removing the ability to alter the whole
airfoil section also removes the possibility of having a reflex wing
(negative flapperon) which gives a cruise speed increase and
a better ride in rough air, by getting rid of excess lift.
That's what makes homebuilding interesting - everyone gets
to do what they think is best .... ;-)
--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
-------------------------------orig.-------------------------
On Wednesday 14 March 2007 18:33, steve whitenect wrote:
This was quite a while ago (over 10 years ago) when I was still living on
the Rock but the lock up was such that there was no aileron control. From
what I can remember it was enough of a scare that he split the flaps.
Control came back with a decrease in airspeed but it was enough to make a
decission right then and there to modify the system. Actually the guy isn't
very big!
Steve W
From: Bob Patterson <
beep@sympatico.ca>
Reply-To: <
rebel-builders@dcsol.com>
To:
rebel-builders@dcsol.com
Subject: Re: [rebel-builders] Rebel - Split flaps
Date: Wed, 14 Mar 2007 18:08:07 +0000
Interesting, Steve !
I'd like to meet they guy - he must have HUGE arms !!
It's pretty hard to pull them down at 75 mph, never mind
80 ++ !! In test flying, years ago, I have flown the Rebel
with full flapperon down, up to about 95 mph - still had
good roll control. The control force gets pretty high,
and I certainly wouldn't suggest anyone should do that !
If he was strong enough to pull the flapperons down
at high speed, the control force shouldn't have been a
big deal for him ..... I guess that's how rumours start !
In any case, the solution would be to watch & control your
speed, not butcher the airplane !! Even with half the
flap area, if he goes too fast, he risks ripping them off !!!
--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
-------------------------------orig.-------------------------
On Wednesday 14 March 2007 16:33, steve whitenect wrote:
Bob
I believe the Newfoundland boys split the flaps because one of them at
one
time deployed the flaperons over 80 mph (maybe well over) and the
controls
just about locked up. I have testomony to that from one of the guys.
Steve W 637R
on an
any
install?
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