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).
Tests for high-speed steering wobbles on Phantom and Silver Ghost cars.
| Identifier | ExFiles\Box 28\4\ Scan313 | |
| Date | 21th August 1925 | |
| R.R. 493A (50m) (D.B. 175 25-9-24) J.H.D. EXPERIMENTAL REPORT. To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. BJ. c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} Expl. No. REF Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG21.8.25. 7657 HIGH SPEED STEERING WOBBLES. We have carried out a further series of tests on Phantom and Silver Ghost cars. Friction. We tried friction inserted in the steering gear and independent of the weight of the car. This was arranged by means of two shock absorbers of the Hartford type inserted between the cross steering tube and axle as in the sketch. We adjusted the shock absorbers until it took 12 lbs. at the steering wheel circumference to move the wheels with the axle jacked up. We could detect no definite improvement as regards steering wobbles. We increased the friction gradually when the wobbles decreased in violence until with friction equivalent to a load of 22 lbs. at the steering wheel contd:- | ||