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).
Pinion failure on a Bentley axle during testing and the request for replacement parts for further tests.
| Identifier | ExFiles\Box 84\4\ scan0407 | |
| Date | 3rd November 1938 | |
| 202 To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls}10/MH.{M. Huckerby}3.11.38. We are sending into the Fitting Shop a Bentley axle, which has been running on the Phantom dynamometer chassis, because the pinion has completely failed. Will you please fit a new pair of production 10/43 gears, a new right hand diff box and new diff bearings if necessary. We wish to do a less severe test to find the ultimate life of these gears under Bentley conditions. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||