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 report detailing the status of research and modifications for Kestrel and Merlin engines.
| Identifier | ExFiles\Box 30\3\ Scan108 | |
| Date | 4th March 1935 guessed | |
| ITEM. (7) DESIGN POSITION. SINGLE CYLINDER AND GENERAL RESEARCH. - CONTINUED:- Investigation of improved coolant circulating system on aero single cyl. units. In hand. KESTREL ENGINE. R.R. Variable pitch airscrew hub. In hand. Setting of controls (Kestrel VIII and IX) Completed. Arrangement of camshaft drive (spring loaded). Completed. Modified oil pump driving shaft. Completed. MERLIN "B" ENGINE. Mod. to ramp cyl. head - sparking plug on inlet side. In hand. Mod. to water circulation system. In hand. Inlet and exhaust valve lift curves. Completed. MERLIN "C" ENGINE. Mod. to free wheel clutches:- starting gear. Completed. Drive for Herzmark air compressor. In hand. Mods. to position of starter motor. In hand. | ||