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).
Testing Hoyt bearings and comparing them to Vandervell bearings for the Wraith model.
| Identifier | ExFiles\Box 115\3\ scan0286 | |
| Date | 19th September 1938 | |
| RHC.{R. H. Coverley - Production Engineer} from Rm.{William Robotham - Chief Engineer} 1020 Rm{William Robotham - Chief Engineer}5/R.19.9.38. HOYT BEARINGS FOR WRAITH. Confirming our conversation with you, if you will let us have a set of Hoyt bearings we will run them so that you will be clear for production. At the same time we should like to point out that the car which is going to France next week is fitted with Vandervell thin Shell bearings, and results so far indicate that these will be satisfactory for standardisation at the completion of the test. If this is so, Vandervell bearings would be released with the Wraith material you are shortly going to order for 'C' Series. Rm.{William Robotham - Chief Engineer} | ||