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).
Diagram illustrating the bending moment on a 1st motion shaft caused by flywheel tilt for a 25 HP engine.
| Identifier | WestWitteringFiles\V\December1930-February1931\ Scan115 | |
| Date | 7th January 1931 guessed | |
| IF THE FLYWHEEL TILTS AXIALLY TO THE 1ST MOTION SHAFT WILL BEND DUE TO A SAGGING BENDING MOMENT THE END COUPLES BEING PROVIDED BY THE BALL RACES. FLYWHEEL 25 HP. | ||