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).
Design status report on sleeve valve and P.V. Goshawk engine components.
| Identifier | ExFiles\Box 30\4\ Scan150 | |
| Date | 13th April 1934 guessed | |
| ITEM. (6) DESIGN POSITION. SLEEVE VALVE ENGINE INVESTIGATION. Top sleeve drive. 4.75" x 5.5" - 12 Cyl.Engine. In hand. Bottom sleeve drive. 4.75" x 5.5" - 12 Cyl.Engine. In hand. Cylinder head. 4.75" x 5.5" - 12 Cyl.Engine. In hand. Arrangement of ports. 4.75" x 5.5" -12 Cyl.Engine. In hand. The preliminary investigation on the sleeve valve engine is completed and no further detail work is at the moment in progress. P.V. GOSHAWK ENGINE. Oil relief valve. Completed. Oil pipes to camshafts, wheelcase, and petrol pump. Completed. Oil pipe - Relief valve to reduction gear. Completed. | ||