dragonsbear

I have a great planes 60 size j3 cub i bought as a partial kit. I would like to know what size gas engine would work to give it 3D performance. As much as I've looked, I'm still confused. I was going to put an old OS 90 surpass on it but I think I would rather make the leap to gas. Any help would be appreciated...
Thanks......Bear

Prop recommendation would also be helpful..... Going for vertical performance, not blinding speed....

scale only 4 me

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Well, You can put as big an engine as you want, this one will never 3D well, I too have one, clipped wing with a 91 surpass, flies great, but with barn door ailerons it will never 3d..

I'd put a dle20ra on it and have fun,,