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).
Capacity and specifications of the 'Seagull' P1 prototype engine.
| Identifier | ExFiles\Box 183\M22\ img235 | |
| Date | 12th September 1922 | |
| ENGINE BORE & STROKE SEAGULL 4 1/4 x 5 1/2 E6/M9.12.22. To EFC. from E.{Mr Elliott - Chief Engineer} X.3548 - RE "SEAGULL" - P1 PROTOTYPE 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, its bore being 4 1/4 and its stroke 5 1/2. We have no information yet as regards the ratio of the starter gearing, but will write to you later on regarding this point. E.{Mr Elliott - Chief Engineer} | ||