Best FLYING sport plane?

The Goldberg Ultimate Bipe deserves a mention. Any plane unable to KE loop and do torque rolls on demand shouldn't even get honorable mention here.

Building the kit taught me alot about building light for this size range. Until the plane gets covered, it doesn't look strong enough to be flown by a .40.

These planes end up weighing under 10 pounds with a 1.20 for power.

They are rugged by virtue of the fact that they are so light, they don't do much harm to themselves at typical takeoff and landing speeds.