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).
Summary of testing and experiments on various car models and components.
| Identifier | ExFiles\Box 123\4\ scan0331 | |
| Date | 30th June 1937 | |
| -2- BENTLEY Tests with external oil filter. Further experiments on Thermoid clutch facings. Tests with the cheapened thermostat for use in conjunction with fixed shutters. Further experiments on brake squeaks. A report will soon be issued on axle deflections. FOREIGN CARS. VAUXHALL. Run on skid pan to determine steering characteristics. Performance figures taken at Brooklands. OLDSMOBILE. Run on Skid pan to measure amount of understeer. Everyone is agreed this car handles exceptionally well. Performance figures taken at Brooklands, including deceleration figures for determination of wind resistance. PACKARD. Dismantled to get price quotation of similar front suspension parts for B.III. TEST BED WORK. WRAITH. Further experiments on valve gear reported in Rm.{William Robotham - Chief Engineer} Elimination of crankshaft period. Preparation of unit for 15,000 miles test. P.III. Comparative power output of 6 port, 4 port and Continental cylinder heads; followed by changes of camshaft. | ||