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Looking for information - Gator Giles 202
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Hi,
Would anyone have any information regarding the CG location of the Gator RC Giles 202m - the wooden version? I have had one for several years, very well built, and right now putting it together hoping to fly it a bit this summer. Naturally, Gator does not exist anymore and inforamtion is quite hard to obtain on their old design. I do know it is supposed to be a Giles like fuse with typhoon wings. Not more beyond that. Thanks. |
RE: Looking for information - Gator Giles 202
Well, the balance point shown on the Typhoon plan is 6.75" back from the leading edge at the wing panel root where it plugs into the fuselage. This coincides with the wing tube/socket position.
Ray |
RE: Looking for information - Gator Giles 202
Thanks. I'll try that as a starter.
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RE: Looking for information - Gator Giles 202
I tried it and I seem to balance way behind, about 2" worth, about where the tube is located. This is without battery, but i would have to add a full pound to get it on 6.75". So I am OK for wingtube as a CG location but it is at around 8" - it is also at 40% between the LE and the TE. I'm sure someone on RCU has this plane and might be able to provide the exact value. Thanks. |
RE: Looking for information - Gator Giles 202
yarom,
The Typhoon has a wing root chord of 16.75" so the balance point at 6.75" from the leading edge is at 40% of this. The Giles obviously has a bigger wing so your 8" (40%) point is probably correct. Ray |
RE: Looking for information - Gator Giles 202
I recently purchased what I believe is a Gator RC Giles 202 from a local swapp meet. The fuselage is all composite and the wing and horizontal stab are sheeted foam. The WS is 78".
I'm having a difficult time determinding the CG. Anyone out there have any info on this airplane? Thanks |
RE: Looking for information - Gator Giles 202
I got indications on mine, which is the built-up version. CG Is supposed to be on the front side of the wing tube. |
RE: Looking for information - Gator Giles 202
As you may know, the final CG location can only be determined after test flights and trimming and depends on the personal preferences of the pilot. Most pattern planes behave well at 35-40% CG location, so 35 or 37 will be a safe starting point. You will need to determine first the MAC (Mean Aerodinamical Chord) of the wing which is the chord located in the center of Area of the wing, on that chord you have to determine the CG that you want, NOT at the root Chord. Determining the MAC is very easy using a graphical technique, and it works for both single and double tapered wings. If you are interested in using this method please let me know and I can post the detailed instructions and a drawing on how to do it
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RE: Looking for information - Gator Giles 202
I was actually looking for the recommended manufacturer CG as a starting point. In the past, calculating the CG based on the wing has not worked well for me in pattern planes as they have elongated tail sections and thus more moment. Thanks. |
RE: Looking for information - Gator Giles 202
Try this site. Worked well for me on a CMP Giles 202.
[link=http://www.palosrc.com/instructors/cg.htm]http://www.palosrc.com/instructors/cg.htm[/link] |
RE: Looking for information - Gator Giles 202
Sir,
I know this is very late, but have to ask you, how did your adventure turn out with the Gator Giles 202? Did you finally finish, and fly it? What engine did you use? Do you still have the model? I am curious, also, to know how you got along with the composite fuselage. It was called ""Nomex"" in that time. It was light, but damage it, and boy were you in for a problem... Including fuel soaking !! I currently have a all wood and foam version of that model, and it still is a good flying model. It came out heavy, so I needed to go to a Moki 2.10 to set the performance up to what the design could handle... I hope you will take the time to reply to this email.. I would love to hear of your experience with this model... Too bad Gator is way out of business... Regards, Robert (Masked Pilot)./ Santa Rosa California... |
RE: Looking for information - Gator Giles 202
ORIGINAL: Masked Pilot Sir, I know this is very late, but have to ask you, how did your adventure turn out with the Gator Giles 202? Did you finally finish, and fly it? What engine did you use? Do you still have the model? I am curious, also, to know how you got along with the composite fuselage. It was called ''''Nomex'''' in that time. It was light, but damage it, and boy were you in for a problem... Including fuel soaking !! I currently have a all wood and foam version of that model, and it still is a good flying model. It came out heavy, so I needed to go to a Moki 2.10 to set the performance up to what the design could handle... I hope you will take the time to reply to this email.. I would love to hear of your experience with this model... Too bad Gator is way out of business... Regards, Robert (Masked Pilot)./ Santa Rosa California... I love visiting Santa Rosa. Have good friends and a great time there, whenever I visit. To the original poster, EABMEX gave you the best answer. Use the method on ANY model, not just the Giles or pattern. The only thing I disagree on with EABMEX is the CG location. With CG at 40% MAC, the model will fly S&L fine but will not have a good knife edge. The better compromise location for a more precise, full envelope of flight is a CG at around 30%MAC. The wing will require 0.75 degree positive incidence if the model is heavy. Less if the model is light |
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