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 conducted on an 8-cylinder Isotta car.
| Identifier | WestWitteringFiles\K\November1923\ Scan7 | |
| Date | 1st November 1923 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H. D.{John DeLooze - Company Secretary} ORIGINAL. EXPERIMENTAL REPORT. COPIES TO: RCJ SJ SWON. By.{R.W. Bailey - Chief Engineer} E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} EF. Expl. No. 460# REF. Hs{Lord Ernest Hives - Chair}4/LG5.11.23. OBJECT OF TEST. Tests on 8-cyl. ISOTTA CAR. TESTER. W.A. Robotham. CONDITIONS. Road tests and dynamometer tests. SUMMARY OF TEST. The car is very tiring to drive - the steering is very heavy at low speeds - road shocks are felt on the wheel. The clutch is heavy to operate and is inclined to jagger. Foot brakes are heavy to operate. Mixture control (vacuum type) is not definite - varies according to throttle position. Springing poor at low speeds - Hartford shock Absorbers all round. Speedometer reads 10% high. Hs.{Lord Ernest Hives - Chair} | ||