Help!!! What size engine???
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From: Powell,
TN
The ARF J-3 Piper Cub i recently purchased recommends a .40-.52 2stroke glow engine..... however i want to put a 4 stroke engine in it....
My question is what size 4stroke engine should i purchase??? The cub has a 70 inch wingspan....
My question is what size 4stroke engine should i purchase??? The cub has a 70 inch wingspan....





