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).
'Seagull' engine's capacity, bore, and stroke dimensions.
| Identifier | ExFiles\Box 183\M22\ img234 | |
| Date | 19th December 1922 | |
| R.R. 238m (100 T) (S.H 798 10-12-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2948 TO EFC. FROM E.{Mr Elliott - Chief Engineer} ORIGINAL E6/M19.12.22. R 3 RE. "SEAGULL". In reply to your query regarding the capacity of the "Seagull" engine, this is for all practical purposes the same as the present 40/50, it's bore being 4½, and it's stroke 5½. We have no information yet as regards the ratio of the starter gearing, but will write to you later on regarding this point. RECEIVED DEC 13 1922 E.{Mr Elliott - Chief Engineer} | ||