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).
100-hour dynamometer test of a Bentley gearbox with a magnesium casting.
| Identifier | ExFiles\Box 86\4\ scan0151 | |
| Date | 18th November 1937 | |
| By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Hs.{Lord Ernest Hives - Chair} Da.{Bernard Day - Chassis Design} Hdy.{William Hardy} 228 Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}3/AP.18.11.37. BENTLEY GEARBOX. In view of the proposed overdrive box for Bentley II.A. we ran a hundred hours dynamometer test at full throttle 2000 r.p.m. in 3rd. gear on a gearbox which had already done 28000 miles. The casting was Magnesium. At the conclusion of the test the parts were in excellent condition. The 3rd. speed bushes in bronze were not appreciably worn. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||