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 a potential reason for calculation failures.
| Identifier | ExFiles\Box 148\4\ scan0002 | |
| Date | 24th August 1932 | |
| DA.{Bernard Day - Chassis Design} FROM R.{Sir Henry Royce} X484 R2/M.24.8.32. C. to SG.{Arthur F. Sidgreaves - MD} WOR.{Arthur Wormald - General Works Manager} HS.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} 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} | ||