Narrative:

While flying to an air show I experienced engine trouble which was later determined to be a swallowed valve. The engine developed severe vibration as well as cutting on and off. I had considerable smoke in the cockpit as well. I declared an emergency and was vectored to the nearest suitable airport where I was able to make a safe landing without any damage to the aircraft; airport or myself.all facets of ATC did a fantastic job of assisting me with this emergency. I was able to use them as an asset as they provide vectors; runways in use; winds and provided me with the unicom frequency and alerted the airport of my emergency. Their assistance allowed me to concentrate on flying the plane and not these other things.

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Original NASA ASRS Text

Title: The engine of a vintage Grumman war bird swallowed a valve and ATC provided generous assistance while vectoring the pilot to the nearest suitable airport where he made a safe landing.

Narrative: While flying to an air show I experienced engine trouble which was later determined to be a swallowed valve. The engine developed severe vibration as well as cutting on and off. I had considerable smoke in the cockpit as well. I declared an emergency and was vectored to the nearest suitable airport where I was able to make a safe landing without any damage to the aircraft; airport or myself.All facets of ATC did a fantastic job of assisting me with this emergency. I was able to use them as an asset as they provide vectors; runways in use; winds and provided me with the UNICOM frequency and alerted the airport of my emergency. Their assistance allowed me to concentrate on flying the plane and not these other things.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.