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 detailing a starter motor brake efficiency test for a 29 slot armature.
| Identifier | ExFiles\Box 34\3\ Scan151 | |
| Date | 24th May 1918 | |
| R.R. STARTER MOTOR BRAKE EFFICIENCY TEST. X.2692 (29 SLOT ARMATURE.) EFFICIENCY VOLTAGE AMPERES HORSE POWER TORQUE (POUND INCHES) SPEED (R.P.M.) VOLTS ON TERMINALS EFFICIENCY ELECTRICAL H.P DELIVERED TO MOTOR TORQUE AMPERES B.H.P STAMP: ROLLS-ROYCE LIMITED, AERO DEPT, 24 MAY. 1918, DERBY. | ||