Performance of A.P.T. pantograph on MK.I O.H.E. results of tests carried out Oct-Nov 78 (TM-ETR-114)

A series of test runs were carried out between Crewe and Willesden at speeds up to 209 km/h to examine the performance of the APT pantograph on Mk.I overhead equipment and to identify locations at which modifications or adjustments may be required to ensure reliable performance when the A.P.T. train...