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).
Potential substitution of Duralumin with hard rolled aluminium sheet for Brake Cover Plates to achieve a cost saving.
| Identifier | ExFiles\Box 32\2\ Scan080 | |
| Date | 16th December 1932 | |
| G.R.Y. Hs.{Lord Ernest Hives - Chair} RHO 81559. BY/EM/J.16.12.32. Brake Cover Plates G.78276/7. The Order Office have drawn our attention to the fact that if it is possible to use hard rolled aluminium sheet in place of Duralumin which is at present standard, it would result in a saving of over one pound (£.1) per chassis. We have therefore requested them to obtain six circles in hard rolled aluminium sheet of a size suitable for making the above and we shall be glad if you will have same fitted to an experimental chassis and let us know whether you consider the aluminium sheet a suitable substitute for duralumin for this purpose. Weights BY/EM. | ||