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).
List of requirements and testing criteria for a vehicle's steering system.
| Identifier | ExFiles\Box 154a\3\ scan0212 | |
| Date | 27th March 1936 guessed | |
| Steering. (1) Durability of parts. (2) Freedom of pots from leaks. (3) Lightness for parking. (4) Road shocks. (5) Selectivity. (6) Column movement. (7) Rattles in the column and silent transmission characteristics thereof. (8) Controls must be independent of engine movement. (9) Steering equally efficient hot and cold. (10) Strength of steering wheel. (11) On full lock the stop should not be in the box. 100 hours bump test. 1,000 miles London traffic. 5,000 miles in England. 10,000 miles on the Continent. | ||