Design position report on single-cylinder work and general research, listing the status of various engine components and diagrams.
| Identifier | ExFiles\Box 30\4\ Scan283 | |
| Date | 20th September 1934 guessed | |
| - 8 - ITEM. DESIGN POSITION. SINGLE CYLINDER WORK AND GENERAL RESEARCH. Preliminary cylinder block - 2-3 port arrangement - 5" x 5½" sleeve valve engine. Completed. Comparison of port areas -5" bore sleeve valve engine. Completed. Preliminary cross sectional arrangement 5" x 5½" engine. Completed. 5" x 5½" Single cylinder sleeve valve engine:- 5" x 5½" Cylinder block and Junk head. Completed. 5" x 5½" Top half crankcase. Completed. 5" x 5½" Crankcase end cover. Completed. 5" x 5½" sleeve. Completed. 5" x 5½" Piston. Completed. Mod. to Bentley single cyl. unit cylinder head. Completed. PV.12.Single Cyl. Unit - Balance pipe between cyl. head and cyl. block. Completed. Cam particulars - Kestrel(Aero Engine) and Goshawk(Aero Engine)(Codename for 20HP Car / Aero Engine after Kestrel(Aero Engine)) ramp cyl. head. Completed. Port diagram - sleeve valve two stroke engine. Completed. 5" x 5½" Single cyl. sleeve valve engine - ½ scale arrangement and piping. In hand. Swirl-meter for sleeve valve cyl. head. In hand. | ||
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).