Performance data of a Hispano servo unit.
| Identifier | Morton\M4.1\ img032 | |
| Date | 1st March 1924 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H., D. {John DeLooze - Company Secretary} X1557 EXPERIMENTAL REPORT. COPIES TO: R.CJ. BJ. WOR. {Arthur Wormald - General Works Manager} By. {R.W. Bailey - Chief Engineer} E. {Mr Elliott - Chief Engineer} Da. {Bernard Day - Chassis Design} EP. {G. Eric Platford - Chief Quality Engineer} PN. {Mr Northey} OY. Expl. No. 4214 / 1559 REF. Hs {Lord Ernest Hives - Chair} /ACL1/LG11.3.24. OBJECT OF TEST. Data of Hispano servo. TESTER. A. {Mr Adams} C. Lovesey. CONDITIONS. Tests made with engine on test bench. SUMMARY OF TEST. Ratio of torque output to torque input. Experiments made over a range of loads equivalent to pedal pressures from 15 lbs. to 100 lbs. and an equivalent car speed of approx. 30 M.P.H. Torque output - In these results - Torque output = torque given by servo + torque input. RESULTS :- | | Ratio torque output / torque input | Value of μ from results. | |---|---|---| | Max. value reached. | 10 | .57 | | Min. value reached. | 3 | .28 | | Average value. | 4 | .36 | contd:- | ||
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).