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).
Requesting an exhaust system with a Wraith type centre expansion box.
| Identifier | ExFiles\Box 111\3\ scan0028 | |
| Date | 10th January 1939 | |
| 8006. To HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}9/JH.10.1.39. 3.B.50. Exhaust System. With regard to the exhaust system on the above chassis, we would like one fitting similar to that already fitted to 2.B.50. except that the centre expansion box should be of the Wraith type. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||