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).
Technical memorandum discussing steering performance and potential improvements on the Goshawk-11 model.
| Identifier | ExFiles\Box 49\4\ Scan307 | |
| Date | 21th August 1922 | |
| X.4264. Extract from R1/M21.8.22. 6-GOSHAWK-11. X.4219. X.4086. STEERING. X.4264. The steering on this car seems distinctly better than 4-Goshawk-11 and in fact no-one would complain of it if it remains as it is and does not shew any worse shocks than I have experienced. I still think however that for safety we should allow the longitudinal tube to lengthen at least .4 without the spring buffer becoming choc-a-bloc. I think the amount that it should shorten might be kept to about .2". I have asked Mr. Day to send you particulars of springs that will give us a set-up pressure of 100 and 150 lbs. with as little increase as is convenient so that we could safely say we knew the maximum forces to which the steering gear is subject. The only part then will be the shocks received by the cross steering tube which we find difficult to eliminate. It is quite evident to me that the greatest trouble that we have experienced is due to the imperfection of the geometry between the longitudinal steering tube and the front spring, and the above is the best compromise to reduce this trouble to the minimum with the present standard chassis equipment. R. {Sir Henry Royce} 1804 MADE AT CROXLEY | ||