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).
Calculation determining the required efficiency of a rocker shaft to achieve a specific overall efficiency.
| Identifier | WestWitteringFiles\N\July1925-September1925\ Scan48 | |
| Date | 12th June 1925 guessed | |
| contd :- -3- Rocker shaft. From consideration of the above, the efficiency of the rocker shaft in transmitting torque must be 96% to give an overall efficiency of 58.2% Hs{Lord Ernest Hives - Chair}/ACL. | ||