David, Congratulations on winning the F3J WC.  It's a pleasure to have your
posts for those of us who will never make it to that level.  gv

-----Original Message-----
From: David Hobby [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 05, 2004 6:50 PM
To: [EMAIL PROTECTED]
Subject: RE: [RCSE] Escape Tip Aileron Mod

Hello

During the preparation for the 2004 F3J World Champs I purchased 3 Escapes.
Initially the wings were set up with the tip aileron servos, but after some
experimenting, all my Escapes have the outer aileron fixed. There was just
no perceivable difference in performance.

I firmly believe that competition thermal models must be simple, easy to
maintain and robust. The last problem you need is a unserviceable model in
a competition when there are plenty of other issues to concern ones self
with. 2 extra servos (especially small servos with fragile gears) are just
not worth the hassle.

The best way to become better in competition is to become comfortable with
the flying qualities of your chosen model and PRACTICE, PRACTICE, PRACTICE.
Chasing the ultimate model will only give small gains. Most of the current
breed of competition models may have a performance difference of, lets say,
3% between the worst and best. This difference can easily be narrowed with
one or two stalls during a flight.

Regards

David Hobby - 2004 F3J WC


-----Original Message-----
From:   Edmonds, Terry D [SMTP:[EMAIL PROTECTED]
Sent:   Wednesday, 6 October 2004 5:08 AM
To:     [EMAIL PROTECTED]
Subject:        [RCSE] Escape Tip Aileron Mod

I have been flying Escapes for several years now and have V-tail,  X-tail
and electric versions. The Escape certainly is one of the top F3J and
unlimited models available today and the quality is second to none. The tip
ailerons are a bit of a complication with advanced programming required and
a little extra weight out on the wing tips. About a year ago I began
experimenting flying the models with the tip ailerons disabled. Careful
analysis revealed the tip ailerons really weren't doing that much. Roll
response in the landing configuration was a little better with the tip
ailerons activated but that could easily be compensated for with a tad more
throw and expo in the main aileron. So for the last year I have flying the
models with the tip ailerons taped shut and the servos removed.



At the 2004 F3J World Champs in Canada I noticed the Slovakian Team had
some Escapes with a link pin between the main and tip aileron and were not
using tip aileron servos. I had considered that idea before but didn't
think you could get a slop free connection because of the compound angle
the two ailerons work at. I inquired with the pilots about this and they
immediately went and got Jaro Muller (manufacture of Escapes) to show me
how to do it. I have since installed this mod in one of my Escapes and can
report it works perfectly and is slop free.



Here is how it is done. Pins are glued in place in the main aileron and
then left free to slide in and out of the tip aileron as the surfaces move
up and down. The pins are located mid chord of the ailerons. Make pins from
3/64" music wire about ?" long. The tricky part is getting alignment of the
two holes so the ailerons line up properly. Drill the holes as nearly al
igned as you can but you probably will have to make them oversize at first.
 Glue the pin in the main aileron with epoxy and micro balloons straight
with the main aileron hinge line and projecting just enough so the pin can
engage the outer hole when the ailerons are flexed full down. You want the
pin to project as much as possible to avoid the ailerons from accidentally
disengaging. At this point the main and tip ailerons probably don't quite
line up so hog out the hole in the tip aileron in the correct direction.
Put a drop of oil on the pin and a dab of epoxy in the hole. Move the
aileron assembly to the full up position and tape them in alignment until
the epoxy has cured. That's all there is to it.



Terry Edmonds

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