Hello Steve >From my experience I can only offer three possibilities. My first experience with engine vibration was from a spinner that was about to depart the engine by way of taking a chunk out of my prop. After it departed the engine returned to smooth. It was very violent. Second, was the cracked blades in the IVO prop. The vibration from that was more settle. One could even question if it really happened. I reduced speed and the vibration went away. Third, was a loose trim tab. With the loose tab, the vibration was in the stick as opposed to the airframe. It started slowly and became more pronounced as the structure of the tab deteriorated. Had I continued to fly the tab would have departed the aircraft. Hope this info helps.
----------------------------------------------------------------- The spinner is fine, as well as the prop. The vibration occurs both in the air and on the ground so that rules out control surfaces. I have never had ice on the Revflow. The vibration began gradually and and continued to increase. I'm going to check the balance on the prop again this weekend. Work has me too busy this week, unfortunately. Richard said that maybe as the aerosols evaporated in the finish, (I put a pretty good coat of finish on this time), the prop became out of balance again. Also, there still might have been moisture in the prop from the flood. It didn't appear so, but who knows? Steve Glover KR-2 N902G AJO, Ca <[email protected]>
