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).
Bump tests conducted on a 40/50 chassis equipped with 4-wheel brakes.
| Identifier | WestWitteringFiles\K\November1923\ Scan80 | |
| Date | 26th November 1923 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H. D.{John DeLooze - Company Secretary} ORIGINAL EXPERIMENTAL REPORT. COPIES TO: [crossed out: R.Co. Sir H.R. By.{R.W. Bailey - Chief Engineer} E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} EB] [handwritten: JRM. OY CG] Expl. No. [crossed out: X9770] X1331 REF. HO/LG 26 11 23 OBJECT OF TEST. Bump tests on 40/50 chassis with 4-wheel brakes. TESTER. Parkinson. CONDITIONS. Bumping tests. SUMMARY OF TEST. These tests show that radius rods do not reduce our front spring breakages. The steering parts, pendulum lever and rocking shaft have failed much sooner than we get on a standard car. The bump test is now being held up until we get new features fitted as described in RL/M22.11.23. hs.{Lord Ernest Hives - Chair} | ||