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Old Oct 01, 2012, 12:13 AM
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Great Planes Sukhoi Su-31 25%

Hello everyone, I'm new to the sport and I now have the bug and can't stop buying planes. I need help though. I just had this SU-31 built and want to know if the recevier and transmitter are adequate for this plane. I have a spectrum DX7-S with the AR8000 receiver. The servos are JR8611. Dual servos on both tail surfaces. If I eventually fly this plane 3D will it be too much for the recevier to handle. Please forgive me if I did not give enough details. Please advise.
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Old Oct 01, 2012, 08:21 AM
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Joined Jan 2012
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The receiver should be great, its one of Spektrums best and is their "high speed" variety. The servos should also be good, digital and high torque.

I just flew my new to me 25% Extra this weekend with DX8 and AR8000 with Hitec digital high torque servos. One other thing to mention I used a 6.6v LiFE A123 receiver pack, the higher voltage and high discharge capability of the pack worked great. The plane was super responsive although I havent tried any real 3D yet.
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Old Oct 01, 2012, 09:47 AM
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Thanks for the info. I was told that the receiver probably couldn't handle the load if too much was going on at once. I'm running a 6 volt 4500 for it. Is a 4.8 ok for the ignition module. I have a DA-50. I read that a 4.8 and 6.0 work fine for this engine
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Old Oct 02, 2012, 12:34 PM
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The 4.8 on the ignition is fine, the ignition is designed for either or. If an ignition battery poops out on you the worst thing that happens is you have a dead stick landing.
Really, the worst thing for me if one goes out and I don't know it is my arm gets tired trying to start it!! Doesn't take me too long to figure out I have a bad pack though. I can't keep flipping like I used to.
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Old Oct 02, 2012, 09:20 PM
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Thanks for the info. I have one more question. I have the drill guide for the prop. Does this require a drill press or does the guide keep it straight enough?
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Old Oct 03, 2012, 11:12 PM
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drill press is not necessary, but I would use one (or have someone with one to drill those holes). A prop that isn't drilled correctly can make installing the bolts difficult.
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