Specifications for an exhaust system undergoing a 15,000-mile test.
| Identifier | ExFiles\Box 86\3\ scan0168 | |
| Date | 22th May 1936 | |
| X223 To Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} Hs {Lord Ernest Hives - Chair} /Wym. {G. Harold Whyman - Experimental Manager} 17/KW.22.5.36. Exhaust System for 6-B-IV - 15,000 miles test. (a) Straight through downtake pipe from manifold to 2nd expansion box - made in Mild Steel 14 SWG. aluminized the whole length, lagged with .312" asbestos rope. (b) EB-421 silencer shell in 16 SWG. - S/M. (c) EB-1504 Sleeve in 16 SWG. - S/M, instead of staybright. (d) EB-978 rear intermediate pipe in 16 SWG. - S/M. (e) RM {William Robotham - Chief Engineer} -10 rear silencer - shell and top hats in 16 SWG. and end pieces in 14 SWG. - S/M. (f) Tail pipe 1.500" dia. instead of 2.00" dia. in 16 SWG. material. Lagging covers in 24 SWG. - S/M. Nickel plated. Hs {Lord Ernest Hives - Chair} /G.H.Hyman. | ||
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).