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Old Oct 01, 2004, 07:58 PM
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Great Planes Sukhoi SU-31 3D

I just bought this plane from the LHS. Has any one tried a Razor 350 C or D in it? or is it to heavy for that size motor?
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Old Oct 05, 2004, 07:16 PM
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Anyone?
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Old Oct 05, 2004, 10:51 PM
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hymmm, i dont think an rzm-350c would give you the umph you realy need to enjoy that plane. id go w/ a hacker b40 w/ apogee 2080 2s to save weight turning a 13x3.8 @ 7.6/1.

it should hover at less than half throttle forEVER!!!
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Old Oct 05, 2004, 11:00 PM
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im not shure, i think it would let it hover w/ the right batteries. you can push rzm-300's pritty hard, wich is what id go w/

ive got a 300 on a fancyfoam edge 540 that is about 11.6 oz all up and it tugs it around great. i use lite battery packs sence i wanted low wingloading but you could probably get a great planes su-31 to be very 3d capable w/ an rzm-300 and some tp 1320's or apogee 1570's, id use a himaxx gearbox w/ the highest ratio (6.6/1?) as that would give it some heat sinks in addition to a light, flex free gearbox... i dident run any numbers and you will want to check out the setup more before you buy but realy even an rzm-350 should do ok. im not shure about the wingloading, auw, and thrust you would end up w/ in the end but it should be ok for 3d. agan, check out the setup more before you buy, dont take my guesswork as a good setup.
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