Hi, I've been flying an alpha trainer with the Evolution .45 motor that comes with the 10" 3-blade prop. I've been burning tower hobbies fuel without any nitro.

First question: How much difference will some 10% fuel make?


Second question: Will going to an 11" prop help me and do I want an 11-6 or an 11-7? Will one pull harder than the other but go slower.

I really appreciate the help I've obtained on this forum.