RE: What SPAD for a 25cc gas blower motor
Scott,
If you intend on using the 25cc for the Ultra Spad Stick BUILD LITE or Build [link=http://spadworld.net/forum/viewtopic.php?t=4444&sid=7c3accd07e5c77b6a8a91883b3016a2d]Chrispad's 25cc stick[/link]. I built the USS (see attached photos) with only a few mods and it came out to be 16.5 lbs. Of course, I'm not a very lite builder either. It flys very slow with my 31cc Ryobi conversion, a 45cc is better suited for this plane IMHO.
Later,
Omaha