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).
Confirming the satisfactory results of a 50 ft. lbs. steering safety test, representing a 40% overload.
| Identifier | ExFiles\Box 153\1\ scan0232 | |
| Date | 3rd April 1939 | |
| 1300 LA.{L. A. Archer} LB. c. Rm.{William Robotham - Chief Engineer} c. RHC.{R. H. Coverley - Production Engineer} c. W/S (C). STEERING. I wish to confirm that the test which I have now imposed of 50 ft. lbs. on the steering gives a satisfactory factor of safety, and that any cars which passed this test can be delivered to the customer without fear. The foregoing represents a 40% overload on maximum stress, which can be imposed upon the steering if turned from lock to lock on a hard gritty surface, and will fully cover our requirements. BY.{R.W. Bailey - Chief Engineer} | ||