Tim,

I'm trying to nail down your existing setup in Motocalc so that when I plug in possible changes I'm going get answers that will be very close to reality.
I got the motor constants for that particular Rimfire motor plugged in. And I've plugged in the airframe. At this point I don't know what prop you are using nor do I know your all up weight.

For what it's worth, I'd love it if Great Planes offered a world class lineup of motors. If guys can manage to get Andrew using a Rimfire in his winning pattern planes the sales numbers will knock your socks off. But you gotta have a motor that is worthy first. It's a chicken and egg thing. But I'm sure I'm not telling you anything you don't already know.

Cheers,

Wiz<br type="_moz"/>