I flew in the same district as Jerry Dale (he just moved to Florida - will miss him) and the 30cc RCS was a touch marginal in terms of vertical performance. He had it on a tuned pipe. Unless there's more power to be had from a 30cc engine I believe we need something in the 35cc-40cc range.

The lighter weight 50cc engine that Desert Aircraft is working on is more engine than we need. I've contact another gas engine manufacturer to try to drum up interest in producing a light engine for pattern. They're listening but the problem is that they can't keep up with orders for what they've already got.

If you have industry contacts, use them. I'm pursuing the reasoning that what's good for Pattern is also good for the huge market of mid-sized ARF's, like the Hanger 9 CAP and others, that have wing loading issues with current gas engine weights.