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 modifications for the Goshawk and Merlin engines.
| Identifier | ExFiles\Box 30\4\ Scan141 | |
| Date | 24th March 1934 guessed | |
| - 7 - ITEM. DESIGN POSITION. ------------------------------------ -------------------- GOSHAWK ENGINE. --------------- Modification to steam separator. In hand. Two speed supercharger - wheelcase. Completed. Modifications to cylinder water inlet connections. Completed. Redesigned automatic mixture control. In hand. Modification to reduction gear casing for Westland Aircraft. Completed. Two speed supercharger. 90% completed. Modifications to hand starter engagement mechanism - to suit two speed supercharger. In hand. Modifications to dynamo drive. - to suit two speed supercharger. In hand. Shaft drive for dragless mounting. In hand. MERLIN ENGINE. -------------- Main oil pipe. 90% completed. Water pump. In hand. Camshaft and rocker mechanism. Completed. Modified oil relief valve unit. Completed. Forked connecting rod with circular bush. Completed. Pressure oil pump. Completed. | ||