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).
Three proposed experiments on a Bentley cylinder head to improve power output.
| Identifier | ExFiles\Box 86\1\ scan0021 | |
| Date | 19th June 1933 | |
| X219. To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson}6/KT.19.6.33. BENTLEY CYLINDER HEAD AND POWER OUTPUT. We want to carry out three experiments on the Bentley cylinder head all of which could be incorporated XXXX on the next 7/1 C. R.{Sir Henry Royce} head which you produce. (1) Peregrine inlet valve seats. (2) Inlet valve ports polished. (3) Guide vane in the inlet valve ports. This should be easily removable. One essential feature of the guide vane is that it will not finish until it is in close proximity to the inlet valve. If you will supply the head with the inlet valve guides fitted they can be removed lter. Hs{Lord Ernest Hives - Chair}/Rn.{Mr Robinson} | ||