The installation and track testing of a prototype Hydrokinetic trailer brake fitted in a B-4 bogie under a Mark IIf B.S.O. (TM-BS-16)

In 1974 a Mk IIf B.S.O. M9516 was loaned to Research by the Operating Manager's Department to allow the installation of an E-Train Hydrokinetic Brake (H.K.B.) and its associated control equipment. The H.K. Braked axle was fitted into a modified B-4 bogie, and the control equipment and instrumentation was...