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).
Preliminary figures for an exhaust system and a newly designed silencer undergoing testing.
| Identifier | ExFiles\Box 93\1\ scan0003 | |
| Date | 8th October 1934 | |
| xHOFF 323 To E.{Mr Elliott - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}/23/KW. 8.10.34. Herewith are some preliminary figures we have obtained on the Exhaust System. We anticipated that the silencer would cause too much restriction, and had one made to the attached sketch, which is in the process of being tested. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||