RE: GP Extra 300S - Questions
15X6 would be a stump puller for sure!! [sm=punching.gif]
My engine was just breaking in when I pulled it out of my Hog Bipe. At the time, the 14X8 seemed to work well. It should be close to the 15X6, but not as much static thrust.
I like my Super Tigre. I'm putting it into my Extra.