After reading my reply, I think I missed the point. You probably weren't talking about the Dragonfly canopy. You can make a KR as wide as you want, but bending the wood that sharply becomes problematic. That's easily solved by using thinner strips and laminating like the boat builders do, or steaming the wood during the bending process. I know some folks have stretched it 6". If you overcome the wood bending business and don't mind the drag penalty, I don't see why you couldn't stretch it a foot. But if you did that I'd have to say you're building the wrong airplane to start with.
Having said all of this, my next plane will likely be a single seater. Not only do I hardly ever fly passengers (because few people are stupid enough to want to climb in that little airplane with me), the liability of it is really starting to gnaw on me. You can sign a waiver, but that doesn't keep your wife and kids from filing a law suite against my estate, and therefore my wife and kids. I'm not usually that paranoid, but that's the unfortunate legal atmosphere here in the US, and it's the least I can do for my family... Mark Langford N56ML "at" hiwaay.net website at http://www.N56ML.com --------------------------------------------------------