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).
Modifications to the New Phantom starter drive, including a change in reduction ratio.
| Identifier | ExFiles\Box 68\3\ scan0167 | |
| Date | 30th December 1925 | |
| X8640 To BY.{R.W. Bailey - Chief Engineer} from AJS. c. to R.{Sir Henry Royce} CJ. Hs.{Lord Ernest Hives - Chair} AJS1/M30.12.25. NEW PHANTOMCodename for PHANTOM I STARTER DRIVE (MOTOR ON ENGINE). X.8640. We send you herewith drawing Lec.2187, shewing a 22 to 1 overall reduction ratio in place of the 30 to 1 as previously used between the starting motor and engine. Other slight modifications to the drive are also incorporated on this drawing. In a day or so we shall be sending a modification to the solenoid operating the pinion so as to make it conform to the requirements of the switch recently sent for this job. We should be glad if BY.{R.W. Bailey - Chief Engineer} will forward a print to R.{Sir Henry Royce}, the weather conditions preventing us from so doing at this end. AJS. | ||