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).
Different steering system combinations to avoid steering wobble.
| Identifier | ExFiles\Box 49\4\ Scan162 | |
| Date | 10th August 1922 | |
| X3441 To Hs.{Lord Ernest Hives - Chair} from R.{Sir Henry Royce} c. to CJ. BJ. c. to Da.{Bernard Day - Chassis Design} BP. c. to FN. Mr. Hardy. R4/M10.8.22. RE. STEERING (GENERAL) X.4264. X.3441. We can now sum this up better than heretofore. As you know, many combinations of steering are possible. Several special ones together may give satisfaction whilst another group may also give satisfaction from another point of view. For instance, irreversible steering as you are now testing it will not do with leaning pivots if combined with spring buffer or bent (elastic) longitudinal tube, but it may be right with vertical pivots or even with leaning pivots if combined with good geometry (radius rods) and straight rigid steering tube. I therefore want to you to test these combinations. (1) The first is irreversible steering with vertical pivots and present combination, but the longitudinal pivots tube having set-up springs giving ample pressure, and having ample clearance .5. In this case steering wobbles ought not to exist because the pivots are vertical (i.e., incorrect geometry). (2) The second combination would be irreversible steering, correct geometry with radius rod, and straight rigid steering tube no buffers or other flexibility. This ought to be right with either vertical or leaning pivots but it may be better with the latter. (3) The idea of a straight rigid longitudinal tube combined with correct geometry and permitting of leaning pivots and irreversible steering is new to us because it should be a way of avoiding steering wobbles. contd.. | ||