RE: IS 445 SQ.IN TO MUCH FOR A TWIN .061 BIPLANE?
Well Dickey you're probably right. But I think it could still be built well within a 3lb (48 oz) budget and would still fly fine at that weight. We aren't looking for serious 3D aerobatics here after all. Just a nice flying scale like performance.
Or I guess "we" could play it safe and split the difference and say 500 to 550. ZZ your glider experience also sets the parameters. I've seen quite a few Gentle Lady's with power pods fly fine with a weight of about 28 to 34 oz.