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).
Testing experimental rubber mixings for engine mountings on the 40/50 model.
| Identifier | WestWitteringFiles\T\November1928\ Scan003 | |
| Date | 2nd November 1928 guessed | |
| contd :- -2- of getting a rubber for the engine mounting that will not take a permanent set; whilst they wish that we could increase the quantity of rubber to take the load on the 40/50, they believe from their tests that we shall get better results with the experimental mixings we are testing. HS{Lord Ernest Hives - Chair}/RM.{William Robotham - Chief Engineer} | ||