alanh
2021-09-29, 08:57 AM
A few years ago the crankshaft broke on my 0.91 four stroke while I was starting the motor--the prop and spinner flew across the pit area almost hitting someone. That thing travelled about 30 ft. away. Imagine if that would happen with a large gas engine. A 25 inch prop taking off 2 ft. from the ground at high speed!! If it would break while you were standing in front of the plane it could seriously injure you. Something to be aware about with large engines!