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).
List of vehicle modifications and a status update on the big bore Bentley engine.
| Identifier | ExFiles\Box 83\1\ scan0072 | |
| Date | 14th December 1935 | |
| -3- (10) Propeller shaft damper deleted. ✓ (11) Corrected bumper bar fixing. (12) Lightened Hardy Spicer propeller shaft. As far as we know, the bearings are the only item on the big bore Bentley engine which is not cleared for production. It will be observed that most of the parts in the specification given do not refer to the big bore Bentley as it will go into production. Briefly, this car is now mainly a test for post big bore chassis coupled with a check test on the big bore unit. HE/Rm.{William Robotham - Chief Engineer} | ||