A train performance computer
E. Bradshaw, M. Wagstaff, Frank Basil Cooke · The proceedings of the Institution of Electrical Engineers. Part B, Radio and electronic engineering, including communication engineering · 1958
The computer employs a 50c/s computing circuit, with induction-type energy meters as integrators, and gives automatic prediction of speeds, running times, energy consumption and r.m.s. motor current.Typical studies of train performance are illustrated.