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 10-EX car at Brooklands track, identifying wind resistance as the key factor for maximum speed.
| Identifier | ExFiles\Box 69\4\ scan0299 | |
| Date | 30th November 1925 | |
| R.R. 493 (40 H) (SL 42 12-7-23). J.H., D.{John DeLooze - Company Secretary} EXPERIMENTAL REPORT. Handwritten numbers: 48771, 48528, 4788 COPIES TO: RCJ BJ WOR{Arthur Wormald - General Works Manager} By E Da{Bernard Day - Chassis Design} EP{G. Eric Platford - Chief Quality Engineer} PN{Mr Northey} OY CWR RS{Sir Henry Royce's Secretary} YX Expl. No. X8771 REF. Hsl/LG30.11.25. OBJECT OF TEST. Performance on Brooklands track. TESTER. W. A.{Mr Adams} Robotham. CONDITIONS. 10-EX car - standard engine except for high compression pistons. SUMMARY OF TEST. The results of maximum speed tests show that the only factor worth consideration is wind resistance. We believe we could increase the max. speed by many miles per hour by attention to this point without spoiling the appearance of the car or destroying the efficiency of the wings. Brooklands track is now closed until next Spring. Hs.{Lord Ernest Hives - Chair} | ||