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).
Weight reduction exercise for Big Bore Bentley Air Silencers by changing material gauges.
| Identifier | ExFiles\Box 85\4\ scan0143 | |
| Date | 6th November 1935 | |
| Mr. Bowers/Mr. Smith. X208 Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager}15/KW.6.11.35. Re Big Bore Bentley Air Silencers. We are making an effort to get some weight off the above, and would like you to make an air silencer identical in size and proportions to the one just fitted to Chassis No. B-23-AE, but with the following parts made in 20 SWG material instead of 16 SWG. material. EB.733 Connecting Pipe from cast bend to air silencer. EB.1611 Outer shell. EB.727 Centre Pipe. EB.1696 Baffle. E.{Mr Elliott - Chief Engineer} 83765 Baffle. E.{Mr Elliott - Chief Engineer} 83764 End Piece. E.{Mr Elliott - Chief Engineer} 83767 Inner Frame to remain as at present, i.e., 18 SWG. Hs{Lord Ernest Hives - Chair}/G.H. Whyman. | ||