Well, it was the big day. I flew the 1/4 scale Cub with the home grown Ryobi 28cc conversion for the first time. There were really no problems. The Ryobi with an 18x6 Dynathrust hauled the 17 lb Cub off the ground in less than 50 feet, and it climbed out nice and steady. It flys nicely at part throttle, and should be a real pleasure to fly. It's much bigger than anything I've built before so I'll have to get used to the idea that it's a bit farther away than I think it is. Came a bit close to some trees! I didn't press my luck and only flew it for about 15 minutes.

No problems with over-heating, radio interference, lack of power, vibration, torque, trim, etc., etc., that I've been worrying about for months.

Anyway, pretty good for a motor that whacked weeds for a couple years before turning to aviation. It may even have enough beans to fly floats .. hope so.

Allan

Nice job, quarter scale?
Edwin

Spotsflyer
Like the looks of that Cub. I just happen to have a Ryobi looking for a home. Which Cub Kit or ARF is that? What's ths wing span, 104?

Charlie S.

It's the Balsa USA 1/4 scale Cub kit, and has a span of 108".
I built it as per plans, except for making the the horizontal stab in 2 pieces, and removeable. I covered it with Sig coverall attached with Sig Stixit. It has 2 coats of clear nitrate dope, 2 coats of white latex, and several thin coats of yellow latex brushed on.
There are a few home-made details such as the dummy cylinders made from foam, balsa, and plastic, an instrument panel with faces from digital pictures, and hub caps made from the bottom of Coke cans. The scale fuel fill comes off for access to 2 holes for carb needle adjustment, and I put the choke on a servo. Lightning flash and registration are cut out of black vinyl.

Very nice details. I especially like the dummy engines. Did those come with the kit? I had to buy dummy engines from World Models for my WM 1/4 Cubs. They are vacuum formed ABS and no where near as scale looking as yours.