An analogue electronic control system for the hydrostatic drive laboratory coach 9 (HYDRA) (IM-ES-081)

Laboratory Coach 9 (Hyd[text omitted as illegible]a) was originally a motor parcels van which has been converted by the Power Systems Unit into a test vehicle for hydrostatic drives. The diesel mechanical drive has been retained on one bogie, whilst four fixed displacement hydrostatic motors hove been fitted to the...