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).
Analysis of steering wobbles on the Goshawk 11, considering pivot design and Ackermann geometry.
| Identifier | ExFiles\Box 49\4\ Scan258 | |
| Date | 30th December 1921 | |
| X.4264 Extract from R7/M30.12.21. X.4219. STEERING X.4264. (2) Goshawk 11. is reported to be entirely free from steering wobbles. Possibly the great beauty of the steering is due to the centre point steering with vertical stub pivots in front elevation. We shall have to depart slightly from this for wire wheels and shall have to still more for front wheel brakes. If we find on the Goshawk that we can lean the pivots back more to give us greater stability, I shall be pleased, as this will be less liable to take charge in cornering and give rather stability at high speeds. ASCERTAIN whether the geometry of the levers has anything to do with steering wobbles. Use Ackermann intersecting behind and in front of the back axle. R. {Sir Henry Royce} | ||