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).
Performance graph for an S.S. Sequence starter motor, plotting efficiency, power, speed, voltage, and current against torque.
| Identifier | WestWitteringFiles\T\2July1929-December1929\ Scan035 | |
| Date | 25th July 1929 guessed | |
| STARTER MOTOR BRAKE EFFICIENCY, MOTOR T S.S. SEQUENCE MOTOR X-AXIS: TORQUE (POUND INCHES) Values: 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150 Y-AXES (from left to right): 1. ELECTRICAL H.P.: 0, .4, .8, 1.2, 1.6, 2.0, 2.4, 2.8, 3.2, 3.6, 4.0 2. EFFICIENCY: 0, .1, .2, .3, .4, .5, .6, .7, .8, .9, 1.0 3. VOLTAGE: 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 4. AMPERES: 0, 25, 50, 75, 100, 125, 150, 175, 200, 225, 250 5. B.H.P.: 0, .4, .8, 1.2, 1.6, 2.0 6. R.P.M.: 0, 300, 600, 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000 CURVE LABELS: AMPERES, E.H.P., VOLTS, B.H.P., EFFICIENCY, SPEED OTHER TEXT: 6 | ||