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).
Design of the Bentley exhaust system, specifically the tail pipe routing over the rear axle.
| Identifier | ExFiles\Box 86\3\ scan0012 | |
| Date | 15th June 1933 | |
| X223. To E.{Mr Elliott - Chief Engineer} from Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} c. By.{R.W. Bailey - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}17/KT.15.6.33. BENTLEY EXHAUST SYSTEM. If possible we should like to use on the first 15 chassis a 2.00" dia. tail pipe passing over the rear axle. The pipe is flattened out to oval section where it passes under the petrol tank. We find when using a round pipe throughout that we get a better system with a tail pipe over the axle than with a tail pipe under the axle. Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} | ||