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 output speed curves for a dynamo to be fitted to an N.2 series chassis.
| Identifier | ExFiles\Box 61b\1\ scan0218 | |
| Date | 27th May 1931 | |
| 40/50 AMPERE OUTPUT OPERATING VOLTAGES 17 18.70 16 18.50 15 18.30 14 18.10 13 17.90 12 17.70 11 17.50 10 17.30 9 17.05 8 16.80 7 16.50 6 16.30 5 15.90 4 15.55 3 15.20 2 14.80 1 14.40 0 14.00 OUTPUT SPEED CURVES OF DYNAMO TO BE FITTED TO N.2 SERIES CHASSIS TAKEN AT 80°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. AT CONSTANT VOLTAGE OF 14.0 DYNAMO R.P.M. S.S. CHASSIS M.P.H. WITH 11/41 AXLE & 33.0" TYRE DIA: | ||