ORIGINAL: tripower222
I purchased a plane hanging from the ceiling of my lhs ( a 4 stroke). Whoever built it put 0 right thrust in it, WOW I never would have thought it would have made that much of a difference. At times, on low rate it takes full right rudder to make up for it. This is my first 4 stroke maybe even with proper right thrust angle it will still pull. What do you think? I'm going to shim the motor mount and see how much it helps.
Are you sure? Most Arfs now come with right thrust already built into the firewall. When the engine and cowl are mounted, you really won't know unless you stand over it and look down.