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).
Photograph of a shattered camwheel after a test bed run.
| Identifier | ExFiles\Box 98\5\ scan0034 | |
| Date | 16th May 1940 guessed | |
| CAMWHEEL RM.{William Robotham - Chief Engineer}619. (EB.3955/6 MOD.) TEST BED RUNNING TIME: FULL THROTTLE = 19 HRS. 30 MINS. PART THROTTLE = 4 " 35 " TOTAL 24 HRS. 5 MINS. | ||