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).
Graph plotting input versus output load tests for different steering gear configurations.
| Identifier | ExFiles\Box 67\3\ scan0087 | |
| Date | 14th February 1925 guessed | |
| INPUT - OUTPUT TESTS CENTRE TO LEFT HAND LOCK. OUTPUT LOAD INPUT LOAD E.A.C. SHORT WORM ROLLER B... STANDARD 40/50 E.A.C. LONG WORM E.A.C. SHORT WORM | ||