Initial test runs on eight HSFV5 cov ab's (IM-HSFV-026)

Soon after their arrival in Derby after being assembled at Ashford, five HSFV5 COV AB's numbered 200220-24 were taken on a test run to Leicester on 22nd October 1970. Similarly, three weeks later numbers 225 to 227 were run over the same test lengths at similar speeds, the main object,...