My uncle, who has owned a 150 and flown a bazillion other planes, advised me to steer wide of engines with low SMOH numbers. He told me to look for no less than about a hundred hours SMOH.
No less than 100 hours? Yikes! Now you tell me! 72G only had about eight hours on the bottom end when I took delivery! (How many hours on it now, John?) And 9ED only had eighty hours on a major when I purchased it!
Chewing my fingernails................................
