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).
The 'Seagull' cylinder block, head gasket, and alterations, explaining the design choice of casting it in two groups of three cylinders.
| Identifier | WestWitteringFiles\J\January1923\ Scan101 | |
| Date | 27th January 1923 | |
| TO BX. FROM E.{Mr Elliott - Chief Engineer} ORIGINAL E1/M27.1.23. c. to GJ. c. to HS.{Lord Ernest Hives - Chair} "SEAGULL" CYLINDER BLOCK, CYLINDER HEAD X9050 GASKET, AND ALTERATION TO HEAD. We send you herewith drawings Nos. Lec 1672 and 1673, showing the above. You will notice that there are 2 cylinder blocks in groups of 3. This is done for the sake of convenience and simplicity in casting the cylinders as a complete block of 6 is rather a colossal job. The shape of the cylinder block has been skimmed down as much as possible, and this entails some alteration to the cylinder head, which is shewn on the latter drawing. E.{Mr Elliott - Chief Engineer} [STAMPED] RECEIVED Hs{Lord Ernest Hives - Chair} JAN 29 1923 | ||