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).
Blueprint illustrating load and torque requirements for a cylindrical component.
| Identifier | ExFiles\Box 94\1\ scan0359 | |
| Date | 22th April 1936 guessed | |
| 1. 1600 LBS MEASUREMENT REQUIRED 2. TORQUE REQUIRED PER DEGREE OF TWIST . | ||