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Old 09-14-2007, 09:24 PM   #1
Sevans16
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Default GP Sukhoi 25% 77" Great Planes SU-31

Well, I just got the new arf. Don't really know why, I really like the scheme on it. I am not sure if I am going glow or gas at this time. Just thought I would get the thread started on it.
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Old 09-21-2007, 08:44 AM   #2
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

Well, how does it look? Have you started it yet?
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Old 09-21-2007, 09:35 AM   #3
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

Anymore information on this plane. Anything less than 45cc on this plane would be aggrevating--relative to pilot perspective
.
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Old 09-21-2007, 01:13 PM   #4
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

OS 200 or Hacker A60-16m, Acro 90 ESC, with Duralite 10S LiPo
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Old 09-21-2007, 11:05 PM   #5
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

The ARF looks really nice. I have not done much with it yet. I have an OS200 for a light, simple build and a DA50R for a monster build. Not sure which way to go right now. I have never owned a gasser. I also have an AW Extra260 with a DA85 so I will be into gas soon enough. IZ have been reading a lot of threads about the GP Yak as they sem very similar. I have posted pics on RCU. I have not figured out how to get my pics hosted so I can post on this sight.
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Old 09-27-2007, 11:57 PM   #6
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

Well, I decided to go with a DA-50r and 8711 all around. Now the manual calls for 2" servo arms. My hobby shop says that's crazy?? Anyone know about this? Do the GP Yak or Cap call for 2" servo arms? Is that what people use?
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Old 10-02-2007, 07:52 PM   #7
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

Check out the Futaba S5050's. They are Digital, High Torque. At 6V it will put out 264 oz. of torque.

8711's are nice as well, but these would do the trick as well.
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Old 10-06-2007, 02:26 PM   #8
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

Quote: Originally Posted by Sevans16
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Well, I decided to go with a DA-50r and 8711 all around. Now the manual calls for 2" servo arms. My hobby shop says that's crazy?? Anyone know about this? Do the GP Yak or Cap call for 2" servo arms? Is that what people use?
Glad to hear you went with the DA on this one. 2" does seem a little long. Troy Built Models has servo arms in that size I believe.

I had the GP Yak. I used 1.5" JR double lock aluminum servo arms.
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Old 12-17-2007, 05:10 PM   #9
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

any progress on your build, or anyone else flying one of these yet???
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Old 12-17-2007, 06:00 PM   #10
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

I just got mine in the mail today. I am going to do a thread and review also so we should do some comparing one set up to the other. i am going to use 5645's x2 on the rudder and 645's every where else. I am also using a fox 3.2 with a pitts style exhaust. I have had the cap and the yak before this one so I hold a good knowledge on what I might expect. I will say that the yak has a two piece wing that makes it really nice. and i have ran both with a 2.4 gas and it flew it fine just no 3ding abilities. i will post back more later got to go thanks guys
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Old 12-17-2007, 07:59 PM   #11
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

I am making some slow progress on mine.
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Old 12-18-2007, 07:52 AM   #12
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

I have a Sucktoy also but 77", that is ridiculous.
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Old 12-18-2007, 10:37 AM   #13
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

Pictures!

2" arms?... how long are the horns??? (Measure from hinge line)
The arms should be about the same as the horn length (for 3D).
This size model is a floater at 11 pounds, OK at 13 pounds, marginal at 14 pounds... be very weight conscious!
I love Su 26 & 31
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Old 01-02-2008, 10:57 PM   #14
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

Just recieved my GP SU 31. I plan on using a Brillelli 46, analog HiTec 645's, a digital for rudder and DX-7. I've completed and flown the GP Yak with a FPE 2.4 all last summer. I know what to expect from the assembly end . The 31's wing is thinner and lower so it should handle slightly different than the Yak which is a real floater.
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Old 01-03-2008, 04:56 AM   #15
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Default Re: GP Sukhoi 25% 77" Great Planes SU-31

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