ORIGINAL: RDJeff
I got the .40 on Saturday, and ran it yesterday! The biggest prop I had on hand was an APC 12x7, but figured it would do alright. The engine started on about the 10th flip, which I thought was pretty good. I ran a 12 oz. tank through it, and it ran around 10,000 rpm the whole time, although I did play with the throttle a little. I think I'm going to like this one!
Iintend to use an 11X7 on my control line PAW40 and it is what PAW's Tony Eiffliender used on his own stunt models - if its good enough for him then its good enough for me!
But it only runs at 9500 with that prop due to a miniscule throat in the fixed venturi.
Cheers.