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).
Feasibility of machining a 3.4 bore cylinder on existing 25HP centres for a 28HP cylinder block.
| Identifier | WestWitteringFiles\V\October1930-February1931\ Scan193 | |
| Date | 10th January 1931 | |
| P. FROM E.{Mr Elliott - Chief Engineer} SECRET. x 5050. E2/M10.1.31. C. to BG. OR. HS.{Lord Ernest Hives - Chair} C. to HY.{Tom Haldenby - Plant Engineer} RMC. 28HP. CYLINDER BLOCK. We send herewith LeC. 2858. shewing an outline of a 3.4 bore cylinder on the existing 25HP. centres. You will notice that the minimum distance between the cylinder skirts is .425, which will be .3 less than we have at present owing to the larger bore. We should be glad to know if Works consider this is a practicable machining job, and if not, what expansion of the centres is considered necessary to make it so. E.{Mr Elliott - Chief Engineer} RECEIVED 12 JAN 1931 | ||