Looking at the Pat King Ringmaster Jr Trainer as a plane to fly in the park behind my house during the week. Plane will fly on a maximum of 50' lines due to space limitations. Plane has a 33" wingspan and 225 square inches of area but the weight is unknown. For a plane to just fly around in circles to readapt to turning around in circles what motor battery would you recommend?
Plans call for about a.15 with a .19 being to much power. Thoughts?