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).
Volumetric efficiency tests and issues with a two-plate clutch.
| Identifier | ExFiles\Box 173\1\ img293 | |
| Date | 12th February 1934 guessed | |
| Volumetric Efficiency They are just beginning to realize the inefficiency of the NORMAL valve port here. G.M. Laboratory are starting some flow tests on almost exactly the same lines as the ones we carried out. At the moment we are ahead of them here. I feel it is so important in gaining silence and a better slow running job for the same power output that we would do well to make up a complete cylinder head to Le C.3673 and try it on the ENGINE rather than wait for the single cylinder test that may take 12 months. Clutches The two plate clutch I have so far tried seem to require a tremendous pedal travel. Will investigate this. | ||