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).
The design of a solid torque tube, specifically its diameter and thickness.
| Identifier | WestWitteringFiles\R\October1927-December1927\ Scan037 | |
| Date | 18th October 1927 | |
| -BY.{R.W. Bailey - Chief Engineer} FROM DA.{Bernard Day - Chassis Design} C. to HS.{Lord Ernest Hives - Chair} EAC.14. TORQUE TUBE. X8350 Herewith we send N. scheme 2485., shewing the solid torque tube. The increase of diameter in the centre of the torque tube is just where the present stress is highest, and it would enable us to thin the tube down. R.{Sir Henry Royce} thinks however that .125 is about as thin as it is desirable to go, and consequently we ask for the tube to be that thickness throughout, except for the swellings towards the flanges. It may be found possible subsequently to reduce this thickness. DA.{Bernard Day - Chassis Design} | ||