The manual say you should use 14 #64 rubber bands (3 1/2" X 1/4" X 1/32" ). I asked my LHS and he had never heard of that big amount of rubber on a trainer 40. He suggested putting on 4 and lifting the airplane in the wing and shake it. If the wing didn’t move you have found the right amount of rubber bands. Put on 2 extra for safety.

How many rubber bands du you use on your Avistar, and how do you determine the amount of rubber bands?

Thanks [sm=49_49.gif]