Wheel flatting incident on APT-E 20th December 1973 (IM-PS-153)

Track testing of APT-E had recommenced on the Old Dalby Test Track on 11 Dec 73. The three car set had been equipped with hydrokinetic brakes on the four unpowered axles (Nos. 3, 4, 5 and 6). The purpose of the test was to commission each hydrokinetic brake in turn,...