Jet Racer (May, 1947)
Jet Racer below puts on a show for the camera before a test run on Rosamond Dry Lake, California. Gene Kelly, builder, reported that although the throttle was opened only a fraction, speed was 30 mph.
Jet Racer below puts on a show for the camera before a test run on Rosamond Dry Lake, California. Gene Kelly, builder, reported that although the throttle was opened only a fraction, speed was 30 mph.


That looks to be a pulse-jet. The noise must have been deafening. They’re both inefficient at low speeds and notoriously hard to throttle.
God, if that is a pulse jet it would be pretty deafening. There’s a reason they called them buzz bombs. My other thought was that it could be some kind of liquid fueled rocket. 1947 seems a little early for a home made jet turbine.
Looking at that casing I would agree with the buzz bomb theorem. Personally, I would have wanted to be anywhere but near that thing….