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).
Progress report on future development items for the Merlin engine, detailing the design position of various components.
| Identifier | ExFiles\Box 161a\4\ scan0084 | |
| Date | 27th May 1936 | |
| ITEM. (sheet 8) DESIGN POSITION. MERLIN - FUTURE DEVELOPMENT. Controls and pipe work for Hobson carburetter. In hand. Alternative cylinder construction with clamped liner. In hand. Farman 2 speed supercharger - investigation of clutch particulars obtained from Farmans. In hand. -do- front gear housing oil jets and actuating shafts. Completed 13.5.36. R.R. Hele Shaw airscrew hub to suit duralumin blades. In hand. -do- governor pump drive. In hand. Pancake type cylinder head - valve rocker geometry. Completed. 2 speed supercharger - spring drive with increased outer driving shaft splines. Completed 21.5.36 Pancake type cylinder head - camshaft drive. In hand. " " " " - arrangement of camshaft auxiliary drives. In hand. " " " " camshaft and rocker mechanism. In hand. " " " " induction pipe arrangement. In hand. " " " " cylinder and induction manifold. In hand. 2 speed supercharger - Tooth forms, moderate rotor shaft and clutch wheels (6.388 ratio). Completed 27.5.36. " " " " Tooth forms, fully supercharger rotor pinion (8.75) ratio. Completed 27.5.36. | ||