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).
Request to modify a silencer by substituting a 1.5 inch diameter swan neck flange for the present 2 inch flange for test bed use.
| Identifier | ExFiles\Box 6\7\ 07-page156 | |
| Date | 2nd October 1931 | |
| RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey} K5-30. Hs{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}2/AM2.10.31. Will you please modify the silencer (to N.sch.3287) that was originally fitted to 19-GIV, by substituting a 1 1/2" dia. swan neck flange for the present 2" dia. flange. This is required rather urgently for test bed use in order to test out the relative merits of the three alternative swan necks and silencer snouts that you have made for 18-GIV. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||