Yeah, I doubt the high frequency and low intensity pressure waves produced by a cabin fan prop would do much for or to a prop sync beat as perceived within the cabin. I think the Jetstream just had a wandering prop sync problem.
Yeah, I doubt the high frequency and low intensity pressure waves produced by a cabin fan prop would do much for or to a prop sync beat as perceived within the cabin. I think the Jetstream just had a wandering prop sync problem.