RE: North Star Conversion
Greg, that Northstar is definitely a scaled-down version. The normal model calls for a .46 2-stroke glow.
The main issue with the Northstar is going to be prop clearance. We can't use the usual trick of running a bigger prop at a more efficient RPM, because you get much bigger than a 10" prop, and you're chewing pieces out of the fuselage... This will require some thought.