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).
The instrumentation of Wraith & Bentley exhaust manifolds.
| Identifier | ExFiles\Box 111\3\ scan0090 | |
| Date | 28th April 1939 | |
| 800b + 623 To HPS.{Horace Percy Smith - Experimental Factory Mgr}from Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}6/JH.28.4.39. WRAITH & BENTLEY EXHAUST MANIFOLDS. We would like you to instrument for 3 exhaust manifolds to ECD.1318 for use on our cars. This scheme means the deletion of the spherical joint and should be fitted to 3.B.50 before this car goes to France. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||