Progress report on single cylinder and general research items, including work on Aero Universal, Kestrel, P.V.XII, P.V.G, and Exe engines.
| Identifier | ExFiles\Box 30\4\ Scan003 | |
| Date | 5th September 1935 guessed | |
| ITEM. (7) DESIGN POSITION. SINGLE CYLINDER AND GENERAL RESEARCH.(CONT'D) Aero Universal Single cylinder unit - coolant outlet from Inlet side of head - Merlin(Aero Engine) 'D'. Completed 27.8.35. Kestrel(Aero Engine) single cylinder unit - 8 to 1 compression ratio piston. Completed 30.8.35. P.V.XII single cylinder unit - inclined lower half crankcase 30° inclination - Merlin(Aero Engine) 'E'. Completed 27.8.35. Kestrel(Aero Engine) single cylinder unit - oil spray to big end - top half crankcase. Completed 27.8.35. Kestrel(Aero Engine) single cylinder unit - crankshaft with additional balance weights. Completed 28.8.35. Investigation of highest compression ratios which can be used on existing cylinder heads. Completed. P.V.G. single cylinder unit - piston for profile testing. Completed 29.8.35. P.V.G. single cylinder unit - strengthened cylinder liner. Completed 29.8.35. P.V.G. single cylinder unit - shortened balance weights for long skirt pistons. Completed 28.8.35. Liquid cooled Exe(Aero Engine) single cylinder unit - modification to allow cylinder to be rotated. Completed 27.8.35. P.V.XII single cylinder unit. Pocketed inlet side sparking plug - Merlin(Aero Engine) 'E'. Completed 2.9.35. P.V.XII single cylinder unit - Modified front end oil seal - Merlin(Aero Engine) 'E'. In hand. Aero universal single cylinder unit - Duralumin push rod - Merlin(Aero Engine) 'D'. Completed 5.9.35. | ||
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).