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Old Jan 10, 2015, 12:13 AM
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roversgonemad's Avatar
United States, ID, Idaho Falls
Joined Feb 2013
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Question
Electrifly Profile SU-31 motor set-up question

I recently got this plane at a club fundraiser (it got thrown in when I bought another plane). It's an old Electrifly Extreme SU-31. Unfortunately, it came with no motor... It has servos and that's it. What motor would work well on this? I am just starting to learn 3D and since this plane was essentially free, it seemed too good to pass up. I have worked out that if I get a Suppo 2217/8 (1100kV), on a 30A ESC, swinging an 11x5.5 APC E, on 3S, I should have a thrust ratio around 1.65:1. I am thinking that will give me pretty good power for most 3D type stuff, but I am just getting into this 3D stuff, so not really sure if that's a good set-up or not. I am a little worried about keeping the weight down as well. It seems by the time I add a firewall, motor, and ESC it might be a bit heavy. Unfortunately, I don't really see making the power I need with a lighter set-up. My only other 3D type plane is a Crack Turbo Beaver, and somehow I don't think the SU 31 will float quite like the CTB....
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