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).
30-hour running test on a 20 HP rear axle and proposing an extension to 50 hours.
| Identifier | WestWitteringFiles\K\November1923\ Scan51 | |
| Date | 14th November 1923 | |
| To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CJ. EG. c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to E.{Mr Elliott - Chief Engineer} ORIGINAL Hs{Lord Ernest Hives - Chair}2/LG14.11.23. 20 HP. REAR AXLE. X4256 On a 20 HP. rear axle fitted with 11/50 axle coarse teeth with the pinion made in air hardened steel, we have completed 30 hours running on 1st. speed, maximum torque. We propose carrying the test to 50 hours. If this axle stands up for that number of hours, we shall then consider it satisfactory and proceed with the other tests. Hs.{Lord Ernest Hives - Chair} H | ||