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).
Investigation into the cause of failure for three broken main leaves from a Bentley Bumper Chassis.
| Identifier | ExFiles\Box 119\1\ scan0193 | |
| Date | 31th March 1939 | |
| 102H V 1306? To H1/EJW. from Rm{William Robotham - Chief Engineer}/FWK. Rm{William Robotham - Chief Engineer}/FWK.8/JH.31.3.39. Bentley Bumper Chassis. We have submitted to you three broken main leaves from the rear road springs of the above chassis. They have all been subjected to the same test - namely bumping with 3" cams. The running time will be found on a label tied to each leaf. Will you please make an investigation as to the cause of failure if possible. Rm{William Robotham - Chief Engineer}/FWK. | ||