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).
Results of torsion and fatigue tests on model cranks and shafts.
| Identifier | ExFiles\Box 63\4\ scan0111 | |
| Date | 31th January 1930 | |
| Rg.{Mr Rowledge} From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} 14499 Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}1/MJ.31.1.30. Herewith results of the torsion tests on the model cranks and also fatigue tests so far run. We are at present running the test on the standard shaft and hope to have some figures in the immediate future. You will appreciate, however, that each shaft requires about a fortnight's continual running before fracture occurs. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||