I am looking @ replacing a OS 40 LA in my Trainer with a 4 stroke. My main reason for doing this is getting ready for a float fly, and will need the additional power to get off the water. I will also be using this plane for training others with a buddy box and want something that doesn't sound like its going so fast. What suggestions for a size on a 4 stroke. I was thinking of a Thunder Tiger 50 size, or will I have to go bigger to get more power. This will be my 1st 4 stroke.
Thanks