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).
Single exhaust system for the senior range, discussing prints PL.163 and PL.114 and modifications to pipe flanges.
| Identifier | ExFiles\Box 134\5\ scan0150 | |
| Date | 11th April 1940 | |
| Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation}10/ML.22-4-40 1132 To Rm.{William Robotham - Chief Engineer} c. to Ev{Ivan Evernden - coachwork}/HH. Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames}10/JH.11.4.40. & Single Exhaust System. Senior Range. Attached herewith are 2 prints of PL.163 (2 sheets) shewing the single exhaust system for cars of the senior range. Particulars of the silencer were obtained from an actual silencer supplied to us by Rm{William Robotham - Chief Engineer}/ym. and are shown on PL.114 of which we also send two prints. The front exhaust pipe from the manifold to the silencer is shown 2.000 in dia. and the tail pipe 1.750 dia. In order to use standard pipe joint flanges we shew the tail pipe attached to the silencer opened out to 2.000 and an alternative scheme using a standard flange machined to 1.750 in the bore instead of 2.000 we suggest that the cheapest scheme be used. Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames} Enclosed 4 copies of memo. 2 prints of PL.163 - 2 sheets. 2 prints of PL.114 | ||