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).
Whirling speed of propeller shafts and potential reasons for calculation failures.
| Identifier | ExFiles\Box 179b\1\ img035 | |
| Date | 1st August 1932 | |
| D/L. FROM R.{Sir Henry Royce} ORIGINAL. R2/424.8.32. C. to MESSRS. HS.{Lord Ernest Hives - Chair} SY. E.{Mr Elliott - Chief Engineer} RM.{William Robotham - Chief Engineer} X484 Regarding the whirling speed of propeller shafts, your conception of this phenomenon seems better than most of us, and there is little doubt it is correct. It has occurred to me that the failure of calculation to agree with experiment may be through the continuous shaft being very flexible at the supports. R.{Sir Henry Royce} | ||