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).
Troubleshooting a pronounced propeller shaft period on an 11.B.V. Bentley Car.
| Identifier | ExFiles\Box 98\1\ scan0081 | |
| Date | 11th March 1940 | |
| 450 c. To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} c. HPS{Horace Percy Smith - Experimental Factory Mgr}/RH.{R. Hollingworth} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}1/SW.11.3.40. 11.B.V. Bentley Car. We are still troubled with a pronounced propellor shaft period in the above car, although we have fitted the rubber mounted centre joint and a perfectly balanced rear shaft (ex 14.B.V.) We now require a front shaft correctly balanced to be fitted, and both shafts should have the correct alignment. This is important because it is all we know at the moment as a cure for propellor shaft periods. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||