Wow, nobody's mentioned the Sig Hog-Bipe yet. Perfectly sized for a .91 4stroke! Covered in film it can come in under 8 lbs. easy and flys great at that weight. Easy take-offs and landings, gentle stall behavior. There's a broad range of performance controlled by c.g. placement and control throws. It's not a precision aerobat like a pattern plane or a 3D plane in stock form, but is capable of any traditional aerobatic manuevers and looks great doing them!

If you're comfortable with a high-powered, low wing, aerobatic monoplane you shouldn't have trouble flying the Hog. Maybe have someone more experienced give it a test flight and even get on the trainer cord for a flight or two. While it's not tricky to fly, it's fairly fast and responsive, rolls quickly, and has no self-correction behavior. In short, it might be hard to "stay in front of it" for a couple of flights.

The kit has all ply parts laser-cut and balsa parts nicely die-cut. Typically excellent Sig wood quality. I don't think a biplane can be designed simpler or easier to build. Instructions and plans are very complete, clear, and helpful.

I recommend moving the main gear forward maybe 3/4 in. for easier ground handling especially on grass without nosing over. Also, with a heavy .91 4stroke like a Thunder Tiger, I think you can shorten the nose about 1/2 in. It's designed for a light .60 2stroke.

Check out [link=http://www.fubarhill.com]fubar hill[/link] for many pics, mods, and tips on the Hog-Bipe!
Please look at my Hogs at [link=http://www.ida.net/users/paulbrab]www.ida.net/users/paulbrab[/link]
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