We have no idea how this didn't pop up when researching France's Aérotrain but during the 1960's, New York Central was up to its own gee-whiz tricks in the form of the M-497 experimental. Searching ...
In 1966, New York Central engineers mounted two surplus J47 turbojets on a Budd RDC railcar to prove jets could run on existing track. The M-497 hit 183.68 mph on a test run, setting a North American ...