RCU Forums - View Single Post - Scratch built Jr Champ modified. Engine big enough???

03-15-2014 | 04:36 PM

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shd3920

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From: Pittsfield, MA

Scratch built Jr Champ modified. Engine big enough???

I am scratch building a Livewire Jr Champ, cutting all the pieces by hand. Everything basically built as per plans (wingspan 35" and length 24") except I widened the fuselage by 3/4" wider at the nose, 1/2" wider at the saddle area, and 3/8" wider aft fuselage. And I made it into a tricycle gear instead of taildragger.

It has a AMA10 .061 that I am wondering if it would be too small to power it adequately. The plans call for a .049 engine. With the widened fuselage I am wondering if a .09 or .10 would be best.

Please advise.

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Last edited by shd3920; 03-15-2014 at 05:23 PM.

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