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).
The three-rate charge system and dynamo output curves for the standard 20/25 chassis, starting with the X series.
| Identifier | ExFiles\Box 163\6\ img280 | |
| Date | 4th May 1933 | |
| x6016 By/RD. From Hs{Lord Ernest Hives - Chair}/Wst. c. to E.{Mr Elliott - Chief Engineer} c. to Hd{Mr Hayward/Mr Huddy}/SB.{Mr Bull/Mr Bannister} c. to Mx.{John H Maddocks - Chief Proving Officer} c. to EP.{G. Eric Platford - Chief Quality Engineer} Hs{Lord Ernest Hives - Chair}/Wst.S/MA.4.5.33. THREE RATE CHARGE ON PRESENT STANDARD 20/25 CHASSIS COMMENCING 101 CHASSIS IN X SERIES. We are sending you the attached curves shewing the output at 80°C. of the dynamo alone and with the two field resistances inserted for Winter and Summer day charging. Hs{Lord Ernest Hives - Chair}/Wst. | ||