Brief video showing startup of the 'Lady Jane Grey' valveless pulsejet engine shown here as built and tested by experimenter Vern Woodbeck of Ontario, Canada. This engine was designed in 2007 by Larry Cottrill, Cottrill Cyclodyne Corporation, Mingo, Iowa USA.
Classic Dynajet (c. 1963) was set up experimentally with a small steel pipe inserted approx. 25 cm into the engine tailpipe. This brief video clearly shows destruction of the steel tube, which is seen coming out of the tailpipe as intermittent showers of tiny white hot metal droplets. This is the natural speed version of the video.
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