RE: WEED EATER PROP SIZE???
My little weedie with gutted stock muffler will spin a Zinger 18-8 @ 6600, zinger 16-8@ 7200, master airscrew scimtar 16-6 @ 7900.
I get best performance from the MA 16-6 on a giant ultra stick. It will spin an apc 14-6 and MA SC 14-6 at 9000+ but that sounds to me to be a little fast for this type of engine. Any opinions on this? I'd love to be able to get some more prop clearance, plus for some wierd reason the price of props almost doubles from 14" compared to 16".