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OMP 47" Yak gas to electric conversion

Old 03-25-2007, 06:23 PM
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Default OMP 47" Yak gas to electric conversion

I have an un built OMP 47" Yak 54 gas kit that I would like to convert to electric. I have 2 each 3 cell Tanic 5000 mha 150 amp continuous packs, these packs are kind of heavy at 13.6 oz but don't lack power. I plan on modifying the fuselage to triangulated balsa construction with a carbon fiber tube running on the trust line to get the weight down from the solid blue foam/balsa skinned stock fuselage construction from OMP while building the wings and such box stock. This airplane with a gas setup weighs 4.4 lbs and if my math is correct I can build this thing at around 3.25-3.5 lbs with the mods that I plan on making. My question is if I want 200 watts per lbs and worse case weight of 3.5 lbs I will need 700 watts on 11.1 volts but I am not having any luck finding a outrunner or inrunner gear box setups that are able to produce 700 watts on 3 cells, does any one have any suggestions? I contacted Tanic and they said that for $115 they will convert these 3 cell packs to 4 cell packs, but that will increase weight even further. I forgot to mention I want to run these packs separate so I will have two flights at the field.
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