"all of a sudden something hit my prop." Mark some years ago I experienced a spinner that came off in flight. In my case the engine began to violently sake for between 5 and 10 seconds. That was the longest few seconds ever spent in the cockpit. the vibration was so intense that I could not see the panel. Then all of a sudden it was like dead silence. I had to look to determine that the engine was still running.. When the dome departed, there was a bang as the prop kicked it past the canopy. All of this happened some where near your house, so if that farmer try's to give you an old corroded dome, you'll know where it came from.
I tried to install the front bulkhead on my latest spinner, but it does not fit due to the thickness of the prop. It came GPASC and I'm sure it was made to fit a prop of X thickness, It did not fit the prop on my plane. Orma Southfield, MI N110LR Tweety, old enough to drink this year Flying and more flying, to the gathering or bust http://www.kr-2.aviation-mechanics.com/