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 position status report on single cylinder research and various engine components.
| Identifier | ExFiles\Box 30\3\ Scan076 | |
| Date | 21th January 1935 guessed | |
| ITEM. (8) DESIGN POSITION. SINGLE CYLINDER AND GENERAL RESEARCH - CONTINUED:- Aero universal single cyl. unit:- Ramp cyl. head - Merlin 'D'. In hand. -do- Crankshaft and cyl. block. In hand. KESTREL ENGINE. RR. Variable pitch airscrew hub. In hand. Mod. to Kestrel VI automatic mixture control for Heyford aircraft. Completed. Piston (6.5 to 1 compression ratio). Completed. Drive for vacuum pump (Kestrel VI engines for Holland). In hand. P.V.G. ENGINE. Metallic gland for cylinder liners. Completed. MERLIN 'C' ENGINE. Variable timing gun gear. In hand. Electric starting gear. In hand. | ||