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).
To cease work on semi-split type pistons in favour of the successful Aerolite pistons for Bentley and 20/25 models.
| Identifier | ExFiles\Box 86\2\ scan0267 | |
| Date | 12th October 1934 | |
| X236 To RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}12/KW.12.10.34. Semi-Split Type Pistons. We recently sent some instructions through for semi-split pistons for the Bentley and 20/25 with modified grinding. E.{Mr Elliott - Chief Engineer} has now agreed that in view of the success of the Aerolite pistons we can drop the semi-split type, and we should therefore waste no more money on grinding tackle. Will you therefore please act accordingly: Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||