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 standardisation of Phantom III carburetter jets and stronger choke torsion springs.
| Identifier | ExFiles\Box 93\2\ scan0220 | |
| Date | 18th January 1938 | |
| 608 308 Rm{William Robotham - Chief Engineer}/GR.{George Ratcliffe} from Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}5/R.18.1.38. We understand that the weaker jets in the P.III carburetter which have now been standardised, necessitate the carburetters going back to the Zenith Co. for fitting. We should like to know why this is necessary. A stronger torsion spring for the choke was standardised at the same time. Recd. Rm{William Robotham - Chief Engineer} I demonshaked the changeover to the Production people who did not like the job, because of mistakes in erection, as there are three torsion springs at this point. The labour charge by Zenith's for the changeover is 7D each. Rm{William Robotham - Chief Engineer}/ H Ratcliffe | ||