http://www.rcmmagazine.com/store/store-plans-catalog-tem.html?item=plans:PL-909&sid=0001GgyWILljtMg7g49W9P1)
That's the link to the Terrier, from the RCM plans catalog, 58" span,
550 sq. in., .25 engine. That's pretty close to what you're talking
about, except your aspect ratio will be higher.
I built a couple of Terriers a few years ago and sold one to a friend.
He powered his with an OS 40 LA, and I put a 40 Surpass on mine.
Performance was very good, with decent vertical and good speed. Also
low speed performance was excellent.
I would expect a .25 to do the trick for a plane this size, but you
would have to choose the right propeller for the desired performance.
Essentially you would have to drive around in first gear and sacrifice
high speed performance, because the plane wouldn't be capable of going
fast anyway, unless you put a 40 on it. Try a .25 and a 10x4 to start
with.
Tim Wescott wrote:
> I'm contemplating building a model of the Aeronca LA, LB or LC. This
> critter has a 9:1 aspect ratio and a 70HP engine, so it's more or less a
> Cub pretending to be a low-wing s****t plane.
>
> I'd be putting an OS MAX .25 in it, or an equivalent electric motor. For
> scale-like slow flying, I keep circling back to a 1/6 scale, 4-5 pound
> aircraft with a 6' wingspan (and about 4 square feet of wing area).
> This seems BIG for a .25, yet I know that the SIG 1/6 scale cub comes
> with a recommended .25-.40 engine range -- and there's something silly
> about a Cub model flying rings around a big heavy P-51.
>
> So, what Cub (or other light plane) models have you flown, how big were
> they, how heavy were they, what engine did you use, and (most im****tant)
> how did you like flying the thing?
>
> Thanks in advance.
>
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