Sure. A gentleman named Glen Saunders worked for Kodiak Research years ago. He was doing some testing on a 914 Kitfox. Not sure if it was a 4 or later model. On one flight he took it up to 29k. He said the engine had some left but the airframe and prop were out of steam. It ****ed out all the coolant and he had to deadstick it back to Ft. Lauderdale airport. Said it took a while to get down, like 20 minutes or more I believe?