I have a Balsa USA 1/4 scale cub with an underpowered and worn out OS 108. The plane weighs 16.5 pounds. This plane was build on the heavy side. Balsa USA says it should weigh 12 to 14 pounds and a 120 4 stroke is the biggest engine they reccomend. I am thinking about a Saito 150 as I like to have a little extra punch to get me out of trouble if I need it. I will be flying the plane mostly scale. I sure would appreciate some feed back. Saito 125a or Saito 150?
Thanks
Dave