James Humphreys 1 Posted November 15, 2021 Share Posted November 15, 2021 So ive acquired a Top-flight P47D Thunderbolt gold edition kit at our clubs funfly / swap meet. The engine recommendations are .61-.90 cu 2 stroke or .91 - .120 cu 4 sroke so my question is will a enya 155 4c be too big for this Model if so what would you put in it cheers. Quote Link to comment Share on other sites More sharing options...
Don Fry Posted November 15, 2021 Share Posted November 15, 2021 The 120 4 stroke is too big in these. Mine used to go well on a Laser 100. Word of warning, when you plank the sides, build in a crutch, so the get built straying. Without, you get a twist. Nice flyer. 1 Quote Link to comment Share on other sites More sharing options...
Jon H Posted November 15, 2021 Share Posted November 15, 2021 An enya 155 would tear it to bits. A friend has that engine in the H9 20cc version and its still got monster power. Topflite always recommend massive engines for the american market. They tend to build them really heavy and fly them at 500mph scale speed. If you build it to 10lbs, which should be easy enough, a 90 or 100 would be fine exactly as Don suggests. Also, TF wood tends to be a bit like oak floor boards at times. You might want to get some decent balsa in for sheeting the tail and fuselage to help keep the weight down 1 Quote Link to comment Share on other sites More sharing options...
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