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).
Vehicle performance testing procedures, comparing different test courses and power curve measurements.
| Identifier | ExFiles\Box 125\2\ scan0037 | |
| Date | 27th April 1929 guessed | |
| contd : -3- attained being the speed given as finishing speed - it is therefore a,low speed full throttle test. The Chrysler speedometer readings given are apt to be misleading - the times only should be taken into consideration as the Chrysler speeds are non-corrected speedo-meter readings. We use on Pistol Hill two different tests - one for 40/50 cars and one for 20 HP. cars, the increase in performance given by the larger 20 HP. is very definitely appreciated inasmuch as it was found to be too fast to be driven over the 20 HP. test without throttling down to get round the corners in safety. The car was tested therefore on the 40/50 HP. test piece. The power curves given are road wheel HP. and were taken by the Production Testers on the Dynamometer. Hs{Lord Ernest Hives - Chair}/A.J.Lidsey. | ||