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).
Use of aluminium pistons, comparing original and Zephyr types, and requesting further tests.
| Identifier | Morton\M11\ img012 | |
| Date | 19th September 1916 | |
| R.R. 235 A (400 T) (S.C. 536 15-2-16) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 1546. To BY from R.{Sir Henry Royce} c. to Hs.{Lord Ernest Hives - Chair} c. to EP.{G. Eric Platford - Chief Quality Engineer} c. to J.{Mr Johnson W.M.} COPY. RE) ALUMINIUM PISTONS FOR THE CAR. R R3/W18916. 19.9.16. Regarding aluminium pistons for the car I understood that 7-CA was fitted with our original type, and not the Zephyr type, and are the same as those that are doing so well in 49-CB. Whatever they were in 7-CA, they were not at the time I had it satisfactory. I shall be glad if you will press forward the tests of the very latest designs, giving the largest possible surface and having a large number of rings. Standardisation sheets are to be held over until design and material passed by Messrs. Hives, Platford, and R.{Sir Henry Royce} R.{Sir Henry Royce} [Handwritten vertically on left margin]: 4269 | ||