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).
Instruction to change the carburetter air silencer intake pipe diameter on Bentley 50 cars.
| Identifier | ExFiles\Box 111\3\ scan0092 | |
| Date | 2nd May 1939 | |
| 8006. To HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}14/JH.2.5.39. BENTLEY 50 CAR 3.B.50. The carburetter air silencer received with this car has intake pipes 2.00" dia. We have instructed for production silencers to have 1.750" dia. intake pipes, and would like you to arrange for 1.750" dia. pipes to be fitted to all new Exptl. cars. In the meantime, will you please fit 1.750" dia. pipes tothe above car. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||