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 of dynamo output at different speeds under various electrical loads.
Identifier | ExFiles\Box 165\6\ img005 | |
Date | 30th August 1925 | |
X5660 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 EFC From G.W. Hancock. Chassis 9-GIII. X.5660. X.4610. 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 current used. G.W. Hancock. | ||