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).
Letter to W.A. Robotham Esq. detailing the weight difference of a crankcase when changing its material from aluminium to electron.
| Identifier | ExFiles\Box 142\4\ scan0030 | |
| Date | 4th July 1936 guessed | |
| -2- W.A. Robotham Esq., With reference to the larger item such as the crankcase. This was reinforced in some of the webs when we changed from aluminium to electron. Weight of crankcase in aluminium............ 300 lbs. " " " electron............ 183 lbs. 60 I hope this information will be of some use to you, and I think you already know I am only too pleased to be of any help on a matter such as this or anything of a similar nature. With kindest regards, Yours sincerely, T D Wishart | ||