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 the Leon Laisne suspension system in comparison to the Lancia system, with notes on the car's steering characteristics.
| Identifier | ExFiles\Box 128\1\ scan0072 | |
| Date | 16th November 1929 guessed | |
| Conts :- -3- There dose not appear to be any advantage in the Leon Laisne system on the front over the Lancia system. It is also heavier and an inferior steering lock is obtained. On the rear, however, where independent wheel suspension allows the body height to be reduced, and vertical coil springs on the Lancia lines are hardly practicable due to space restrictions and drive difficulties, the Leon horizontal spring seems to offer possibilities. The car is small and so hardly comparable with RR. cars but at the moment there is no big car with a good unconvential suspension. It would offer considerable opportunity for experimental investigation with regard to compound rating coil springing. The car is cheap - £500 for a closed 8-cyl. model. Hk.{Col. T. Harker - Sales} considers whe could re-sell fairly easily if we were interested. The Co. have already sold cars to the Minerva Co. and others for investigation. STEERING. The layout as we have already pointed out is original. The steering is heavy for Mhe size of the car. It is however, not absolutely irreversible. It is absolutely immune from road reaction, and at no speed could we observe any inclination for the front wheels to 'tramp'. Mr Harris, their Managing director, states that they have run pivots with ball bearings thrust races and never had any signs of a wobble. We could not detect any ill effects from the varying pivot lean. | ||