SEN-427 June 10 2000
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- Category: Archive 2000
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News and Reports 2000 - First half
SCAT Electronic News 10 June 2000 Issue 427
Table of Contents
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Any Opinion appreciated
Interested in F1C - Dave
Galeville Struggle
New Light Weight Materials
F1A stabs and spinning? - Abad
Re: try this stab - Skyking
Thanks
Any Opinion appreciated
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Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
Hello
I saw your site on the web and was wondering if you had ever seen or flown an
Autogyro made by : The Airplane Factory called the Kombat Kopter. their web
site is: http://www.xtalwind.net/rc/airplanefactory/GYRO.HTML
I am new at the RC hobby and am just now taking flying lessons on a
conventional plane via a Buddy Box. But I have always been the type to try
something that the "other" guys at the airfield, don't have. It seems
reasonably priced at $119. but I have not heard much about it other than what
I read in the Ad.
I would appreciate ANY feedback you might have on this particular model. I am
writing from West Central Indiana.
Thank You
Mike O.
This email address is being protected from spambots. You need JavaScript enabled to view it.
Interested in F1C
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Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
Hello,
I'm interested in F1-C. I would like to start with a completed model to
learn the ropes, and then build my own. Any suggestions?
Thanks,
Dave
Galeville Struggle
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Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
> >
Andy "...my blushes..." as my hero Sherlock Holmes was want to say--
but I am not able to take credit for leadership in this Galeville effort
--It began years ago with Joe Wagner(of Bantam fame), then to Don Ross
whos inimitable style and prolific correspondence forged us ahead on
many fronts, there is now a leaderless "Gang" of many but principally
Jean Pailet, Sid Krivens, Arom Schlossberg, a numberless group of
supporters who rise to the occasion signing Petitions, sending
Congressional letters, donating money(Yeah!!)and myself who are "pushing
the rock up the hill"! It is a microcosm of America at it's
finest!----fighting off the damned Government!!!
[The battle for Galeville is not over and Bob and his group are
still working hard pushing that rock]
New Light Weight Materials
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At a recent event Matt Gewain was there spectating at the F1C line.
I expect that we will see a different kind of F1C from Matt in the
not to distant future. [No, Doug it will not be a canard, not THAT
kind of different!].
Matt had some information new extremely light weight materials that
CST is adding to catalog at The Composites Store. This looks great for
Free Flight. New items are :
Carbon Fabric
2.3 oz/sq yd (80 g/m2) 39 inches wide.
Carbon Aramid Hybrid Fabrics
2.0 oz/sq yd (68 g/m2) 39 inches wide
2.8 oz/sq yd (96 g/m2) 39 inches wide
Carbon Braided Sleeve from light weight 1 k fiber
0.1" (2.5mm) diameter
0.3" (8.0mm) diameter
0.6" (14.0mm) diameter
They have also added a new RTV mold making rubber material. This works great
for molding complex small parts like stab mounts.
More details are on the CST web site at www.cstsales.com and Matt's email
is This email address is being protected from spambots. You need JavaScript enabled to view it..
F1A stabs and spinning?
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Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
Very interesting views on stab theory!
I have suffered when flying in strong turbulent/windy thermals that sometimes t
he
model starts to tighten the glide turn and spin in for a while.
I have discarded a too big vertical fin as most of the time it flies ok. Will m
ore
incidence on the inner wing help or has it something to be with tailplane secti
on?
Javier Abad
Spain
Re: try this stab
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Author : This email address is being protected from spambots. You need JavaScript enabled to view it.
Dear Lee.
I think if one is going to try a symmetrical stab it
should be at least 10% thick
at the 26% chord position.. Thinner sections just don't do it.
I think the thicker
symmetrical section, employing a sharp leading edge, might surprise you.
I can't remember the symposium date, but it goes back a bunch of years. I was
impressed by Grimmner's (sp?) avocation of symmetrical
stabs as described above.
During experimental trials they increased and decreased
thickness ratios, and found
performance went to pot off the 10% value.
Incidentally, the c.g. could be moved back a surprising amount
for a given TVO . As
he mentioned in the symposium this went against what an aero
engineer would have predicted.
But then again this guy may have been a werewolf,
cleverly using the NFFS
as a means to sabotage the english speaking world's FAI design
efforts. Yet, I
hate to think I was the only one dumb enough to fall for it!
Salutations, Bill G.
PS. Big humiliation. I've been trying to throw a tennis ball to
loosen up my back
injury so I could do HLG. Could barely make 100 ft.
A skinny little teenager came
along and pitched the damned thing 210 feet. And then
he laughed at me. I figure
that nasty little twerp generated about four times the
power I extracted from my withered old arm.
But revenge is the best way to get even! I'm now constructing a
straight jacket
kind of device loaded with all sorts of torsion devices that, with help from
friends, is wound up and armed like an ancient Roman catapult. Once these
self-same friends point me in the right direction, insert i
the glider onto the ever
appendage, I will fire it off by using my tongue to trip the trigger.
When you come to the Gibbon's FAI Annual I will demonstrate its anti-aircraft
potential.
Best. Bill Gieskieng
Thanks
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A thank you to Brian Van Nest for his donation to support SCAT Electronic News.
.......................
Roger Morrell
