RE: PHOENIX MODELS F-20 TIGERSHARK ?
Just goes to show you how careful you have be sometimes...I had fitted an APC 9 x 8 to my Tigershark, but when I removed the whole assembly, spinner,nuts,prop and backplate, ready for final balancing, the apc had two small gouges from the backing plate when I tightened the prop.
although only small, I'll have to get another 9 x 8 , so for now a 10 x 6 will have to do, I got a 9 x 7 as well to try in the mean time
and what a pain balancing that aluminum spinner, I'm doing each part separately, but the biggest pain is the spinner cone itself, it has the greatest imbalance of all the components so far!!!!