Development of an all-pneumatic brake control system for APT-S Phase 1. Static tests at Westinghouse Brake and Signal Co. Ltd (TM-BS-20)

It has been proposed that on APT-S, brake control could be by a twin-pipe air system similar to that used on conventional trains. It has been assumed in the past that an air control system could not produce an acceptable response time because of its inherently poor propagation rate. For...