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).
Stress calculations and dynamometer testing for the 20 HP rear axle driving shafts.
| Identifier | ExFiles\Box 102\4\ scan0050 | |
| Date | 21th January 1930 | |
| X5350. RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} 2/MJ. 21.1.30. We are making the stress in the 20 HP rear axle driving shafts to be 51,500 lbs/sq.in. at maximum torque in bottom gear. We think it is worth while making sure that no permanent twist takes place in the shafts when they are run on the dynamometer. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||