A theoretical study of methods for enhancing the high speed performance of BR/BW 'highspeed' pantographs (TM-DA-46)

This report studies some theoretical methods of improving the performance of the BR/Brecknell Willis ‘Highspeed’ pantograph in order to allow two-pantograph current collection at speeds higher than 125 mile/h. A substantial reduction on head mass using a servo-control system could raise this speed to over 160 mile/h, but would...