One of my good friends at our field has that 51, with a 3.7 in it! What's that... about 60cc? Man that thing screams. He flies it wide open ALL the time... unbelievable. Flies great, lands slow with flaps. I think I can get my 52cc running again with a little repair... might be a good match.
I'm still verly interested in the SkysharkRC P40 Warhawk, but apparently they're still having some problems working out the bugs in that new design...
Their web site says they're just not happy with the quality from outsourced component manufacturers and the plane is coming in 5-6 pounds heavier than they want. Been there, done that... don't want to go down that road. Hopefully they'll have good news in December like they said they hope to on their site. We'll see.
Tom