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 of dynamo output speed curves for the N.2 Series Chassis under various load conditions.
| Identifier | ExFiles\Box 163\6\ img150 | |
| Date | 5th May 1932 | |
| OUTPUT SPEED CURVES OF DYNAMO TO BE FITTED TO N.2. SERIES CHASSIS TAKEN AT 30°C WITH 65°C SETTING 1. FULL OUTPUT: SUPPLYING BATTERY ONLY, AT MAX: BATTERY VOLTAGES 2. OUTPUT DURING NIGHT RUNNING WITH VOLTAGE HELD DOWN TO 14.0 BY HEADLAMPS. 3. OUTPUT DURING DAY RUNNING, WITH RESISTANCE IN THE FIELD CIRCUIT, AND SUPPLYING BATTERY ONLY. Y-Axis (Left): AMPERE OUTPUT, 0, 1, 2, 3, 4, 5, 6, 7. OPERATIN, 14.00, 14.40, 14.80, 15.20, 15.55, 15.90, 16.30, 16.50. X-Axis (Top): DYNAMO R.P.M., 0, 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000, 3200, 3400, 3600, 3800, 4000. X-Axis (Bottom): S.S. CHASSIS M.P.H. WITH 11/41 AXLE & 33.0" TYRE DIA:, 0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70. | ||