Summary of pop train track tests October 1975 - December 1977 (IM-DOS-054)

POP train ran as an articulated 2/3 car unit on H4X, H3X bogies from October 1975 and is still continuing testing at the time of writing, March 1978. This note summarises tests conducted up to and including December 1977, and covers three test series. (1) October 1975 - December...