Instructions for fitting a lightened Wraith III exhaust system and preparing a similar system with nickel plating.
| Identifier | ExFiles\Box 8\8\ 08-page17 | |
| Date | 15th October 1937 | |
| HPS. {Horace Percy Smith - Experimental Factory Mgr} 623 Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} 9/JH.15.10.37. Wraith III Exhaust System. The lightened type exhaust system made up to the specification contained in Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} 9/MH. {M. Huckerby} 7.9.37. can be fitted to 24.G.VI. whilst you have the car in the fitting shop. We would like a similar system preparing to be fitted to 26.G.VI. before this car goes to France. In this case the downtake pipe, front expansion box and intermediate pipe should be nickel plated inside and outside, the perforated tube in the first expansion box should be nickel plated, and also the insides only of the first expansion box and the rear silencer. Rm {William Robotham - Chief Engineer} /Wym. {G. Harold Whyman - Experimental Manager} | ||
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).