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).
The performance of the vehicle's brakes and steering systems.
| Identifier | WestWitteringFiles\N\2October1925-December1925\ Scan92 | |
| Date | 12th June 1925 | |
| R.R. 493A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. -3- Expl. No. REF Hs{Lord Ernest Hives - Chair}/Rml/L0231025 The pedal pressure required to free the clutch was not excessive. BRAKES. The side brake was singularly inaccessible and quite ineffective. The foot brake operates the shoes on all four wheels by means of a hydraulic servo driven off the rear of the gearbox. When this is not in action, at low speeds, direct pedal pressure applies the brakes. (See performance). STEERING. The steering column is very rigidly supported. The steering under the conditions of the test was not exceptionally light, not particularly heavy. The very greasy and wet state of the roads was naturally conducive to giving an impression of lightness. Its behaviour indicated that there was a considerable amount of friction in the pivots, because it was never really finger-light even on a smooth greasy surface. It had a definite but gentle self-centering action on corners. It is moderately low geared, but not so low as the latest Phantom. For normal driving it was not highly selective; it has a very slight tendency to stay 'put' when turned through small angles out of the straight. Though we had no opportunity of trying the car on a bad road, the general impression created was that the steering shocks would not be transmitted to the driver. We could not make tests for wobbles owing to the greasy state of the roads. The steering lock of contd :- | ||