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).
List of experiments and improvements regarding supercharging, system silence, and clutch engagement.
| Identifier | ExFiles\Box 133\4\ scan0024 | |
| Date | 2nd July 1934 | |
| -3- Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}16/KW. 2. 7. 34. (4) Supercharging experiments. (5) Increased silence of intake, fan and exhaust system. (6) Improved clutch engagement. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||