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Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

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Old 07-17-2002 | 08:30 PM
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From: Cabo San LucasBaja California Sur, MEXICO
Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

AnnMarie:
thanks for the reply, I spoke with Alfredo Guzman, your GP dealer in La PAz this morning, he is currently flying the Giles 202 and he is really happy with; I have decided to drive to LA Paz from CAbos and do my maiden flight with him, I belive Mr. Miller has another giles 202 and he will fly it saturday as well for the first time. I will report how We did. thanks
Old 07-23-2002 | 05:42 PM
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Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

ann marie:

check the c.g. at 9.25 in, it took 3-3/4 oz. in the tail, with a 1.60 fx and a tatone plastic spiner, batt behind the c.g.

Alfredo was the test pilot since he currently flys one.-
gone in less than 6 seconds
already place the order for a new fus, I will give it a second chance, still too sad to discuss details
Old 07-23-2002 | 05:45 PM
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Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

Mancha please confirm --
Center of Gravity: 9-1/4" (236mm) Forward from Trailing Edge of the wing, next to the fuselage. (Plane is upside down while doing this).

NOT BACK FROM LEADING EDGE.
Old 07-23-2002 | 09:45 PM
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Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

ann marie
I did it just as you said it 9-1/4 in from the trailing edge, of course plane up side down.

the other giles from mr. miller balance ok, no extra weight added

it went up and down 3 times, my giles was 0 on the wing, 0 on the stab, so we gave it a little less than 1 degree on down elevator to compensate,. since it was already glued, alfredo´s also has down elevator on his trim, I guess the topic is well discussed, the new fus will be done as you sugested before +1 on engine, 0 on wing and +1 on stab, hopefully I will enjoy my plane.
thank ann marie.- I let you know how it end up.
Old 11-16-2002 | 09:42 PM
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Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

Ann Marie:

today I flew the giles again, the new fus arrived o.k. only with little damage in the wing bed section but not serius, I guess that comming all the way to los Cabos, mexico has some tolls!!
Alfredo, your dealer in La Paz, helped me to put the +1 on the stab since it red almost 0.
We balance it a little nose heavy for maiden flight.
I took of perfect.- I gave it up elevator trim and some right aileron trim.- have challenges with the engine at low throtler
I guess from the last crash!!
I landed dead stick and fast.-
happy now with the purchase!!
thanks for your help!!
Old 11-16-2002 | 10:04 PM
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Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

After a month of carefully putting this model together according to the manual, and setting it up using the GP cg machine, laser incidence meter and the throw meter, the first (and last) flight lasted all of about 15 seconds. The model was completely uncontrollable. I think I'll pass on this model in the future.
Old 11-16-2002 | 11:00 PM
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Default Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

Did you set C.G. from LE or TE? A friend of mine got the ARF without the addendum concerning the C.G., and he was totally terrorized from the moment it left the ground. After 10 minutes of utter Chaos, he got the thing to the ground right side up and travelling forward too. After towelling the off the sweat and peeling 12 oz.of lead from the tail, he loved the plane. If it were anyone else we knew flying that plane that day, it would have been powdered for sure.
Old 07-15-2006 | 07:15 PM
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Default RE: Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

Guys
I aquired a 1/4 giles and have read this forum post about 20 times and am a little confused. I am using the floor of the canopy for the datum line and have the plane set level with this point. The elevator is showing -1/2 deg and the wing is at -1/2deg as well. The engine is at -5 degree ( need to change this for sure!) I have to check the right thrust. I am trying to figure out how to set the main wing as the elevator is glued and I really dont want to cut and reglue it. I have flown it and it was a hand full I did not even get 6 min in the air with it seemed like it was a bear to trim out. Any help would be appreciated.

YS 120
16x8 APC
Hitec 645MG servos
remote glow
Weight 11.8lbs
Old 07-17-2006 | 01:46 PM
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Default RE: Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

Dunk:

I have not flong this plane for 1 1/2 yrs, although still have it, I will go ahead and messure my incidenses and report them back to you.

I just got tire of it, I mastered everything about it but landings, it just have to come down at the exact air speed otherwise it snaps on you on bounce back to air and crach, it stall window is really small!

I end up buying a PW extra from Greap plane too and it is a total diferent expirence!!

as a tip, this giles does not like to fly at less than 1/2 throttle and 3/4 with an OS 1.60FX and 17x8 scimmitar is best.
Old 07-17-2006 | 07:52 PM
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Default RE: Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

I figuredd that out the hard way. First flight I tried to land and it was about 4 ft off the ground and tip stall and cartwheel. I already reapired it. I balaced the plane again and it was a little tail heavy so I moved the battery and it now is slightly tail heavy. I had a neg 5 deg of down thrust on the motor and changed it to +3/4 deg. and the tail and wing are with in 1/2 deg I thought it would be close enough to try and see how it flies. I also have a 1/4 scale extra 300xs that I am recovering...hope it has better flight charateristics. I plan on using a evolution 35gt and a 20-8 carbon prop should be a good combo but I dont think it will have unlimited vertical by any means. I am trying to figure out how a person can correct or offset the elevator incidence without cutting and reglueing the whole tail. I thought that I might be able to change the wing but I was not for sure. I have flown a ton of 40-60 size planes and ran across these two and thought they would be a good starting point for the 1/4 scale planes. Eventually I want to build one that I can try to hover or 3D. Been practicing like mad on a simulator and have it down but the planes on there are perfect balance and so fourth. I think it would be hard to duplicate the performance and settings and setup of the plane with out a lot of help



Gary
Old 07-17-2006 | 08:19 PM
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Default RE: Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

That particuliar arf was known to have incidence problems along with motor mounting angle problems. But if you corrected them durring assembly it would fly nice. Mine still does. And landings are as they should be.
Old 07-18-2006 | 01:00 PM
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Default RE: Gp Giles 202 1/4 Scale, Upthrust Problem!!!!

Dunk:

one member of La Paz club, placed a ZDZ 40 cc. in the nose of his GP giles, it is not a good idea!

I saw it crashed on approch, the plane is able to fly slower with the big prop but close to the ground it fools you and snap but not from 4 feet but from 8 feet!!

Later the plane all fixed up was sold to a great pilot that placed a Zenoah 38 on, He flew it like a maniac and putted a great show many sundays but it died again in a nonrecovered slow flat spin, ... all the way down to the floor pan..!!

leason learned: it is not a 3D type of plane! it does not like to fly slow.

I came to the conclusion this giles is a good fast plane and maybe a intermedia pattern plane, it will give you good finger trainning for future groth. enjoy it while it last.

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