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).
Vulture axle rating compared to Bentley and the philosophy of experimental component testing.
| Identifier | ExFiles\Box 123\3\ scan0110 | |
| Date | 24th January 1934 | |
| X4704 To Sg.{Arthur F. Sidgreaves - MD} and Wcr. from E.{Mr Elliott - Chief Engineer} E.3/HP.24.1.34. c. Hs.{Lord Ernest Hives - Chair} By.{R.W. Bailey - Chief Engineer} Da.{Bernard Day - Chassis Design} Hdy.{William Hardy} re Vulture. Regarding the last paragraph of Hs.{Lord Ernest Hives - Chair}5/WJ.23.1.34, the Experimental Department's comparison of Bentley and Vulture axles takes no account of relative maximum chassis speeds, and as this correction should be in the neighbourhood of 90 squared to 100 squared the Vulture should be rated at 25% higher duty than Bentley. We are fully alive to the necessity for reduction of weight, in fact we have always said that we should like to make our Experimental pieces so weak that they collapse on initial test, and are then incrementally strengthened until they just stand up indefinitely. This was the policy said to have been adopted by Ford in producing the model Tee, but it is hardly practical for us to adopt these methods entirely throughout the chassis. E.{Mr Elliott - Chief Engineer} | ||