RE: Hog Bipe Engine
Crash,
I just bought a Magnum 91 four-stroke. It runs great and I'll be putting it in my Great Planes AT-6.
I recently heard that Magnum has cleaned up it's quality act and their engines are much more reliable these days.
I'll let you know after I've flown this one a few dozen times.
Aloha,
Jim (SafetyWrench)