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).
Chart detailing the dynamo output in amps at various speeds for Chassis 9 G.III under different electrical load conditions.
| Identifier | ExFiles\Box 4\9\ 09-page124 | |
| Date | 30th August 1925 | |
| X58240 Hotel de France, Chateauroux, Indre. France. GWH.{George W. Hancock - Head Chateauroux}2/Crn.30.8.25. To: "Hs{Lord Ernest Hives - Chair}". copy to "RSC". From: G.W.Hancock. Chassis 9 G.III. We have taken a chart of the output of dynamo, as follows :- No lights. Battery ignition only. m.p.h. 10. 14. 15. 20. 25. 30. amps. 0. 5. 6.5 8. 7.5 6. m.p.h. 35. 40. 45. 50. 55. 60. amps. 5. 4.5 4.5 4. 3.5 3.5 Battery ignition, side & tail lamps. m.p.h. 10. 15. 20. 25. 30. 35. amps. 0. 5. 5.5 5.5 5. 4.5 m.p.h. 40. 45. 50. 55. 60. amps. 3. 2. 2. 2. 2. Battery ignition, head side & tail lamps. m.p.h. 10. 15. 17. 25. 30. 35. amps. 0. 0. 0. -0.5 -1. -2. m.p.h. 40. 45. 50. amps. -2.5 -3. -3. Dynamo at speeds of 10, 15 & 17 m.p.h. is just maintaining xxxxxxx current used. G.W.Hancock. | ||