From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Graph showing the brake efficiency and performance characteristics of a starter motor.
| Identifier | ExFiles\Box 64\1\ scan0257 | |
| Date | 4th December 1926 guessed | |
| STARTER MOTOR BRAKE EFFICIENCY XB 247 A2 Y-Axes (from left to right): ELECTRICAL H.P. (Scale: 0 - 4.0) EFFICIENCY (Scale: 0 - 1.0) VOLTAGE (Scale: 0 - 20) AMPERES (Scale: 0 - 250) B.H.P. (Scale: 0 - 2.0) R.P.M. (Scale: 0 - 3000) X-Axis: TORQUE (POUND INCHES) (Scale: 0 - 110) Plotted Curves: AMPERES E.H.P EFFY. VOLTS B.H.P SPEED Note: Figures in file | ||