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 modifications and development status for Merlin F/1 and G engines.
| Identifier | ExFiles\Box 161a\4\ scan0134 | |
| Date | 22th September 1936 | |
| ITEM. (8) DESIGN POSITION. MERLIN F/1.ENGINE. Mod. to ignition wire conduits - to use Lodge spring loaded nut. Completed 22.9.36. Thread mod. to Hele Shaw blade and adaptor. " 22.9.36. Keyed washer for locking tab - lower camshaft drive. " 22.9.36. " " " " - electric starter bevel cross shaft. In hand. Modified roller bearing - upper vertical drive. Completed 11.9.36. MERLIN ENGINE - FUTURE DEVELOPMENT. Hele Shaw airscrew - pump and governor unit. Completed 22.9.36. Claudel Hobson carburetter - arrangement of controls. " 19.9.36. " " " - oil connections. " 19.9.36. Lightened engine - Magnesium air compressor drive housing D.4593. In hand. " " - Magnesium R.A.E. compressor housing. In hand. " " - Magnesium oil filter cap. Completed 22.9.36. Mod. to fuel pump - morganite bushes. " 15.9.36. Modified MERLIN "G" ENGINE. Hele Shaw airscrew - layout of oil pipes. In hand. Mod. to cylinder head to clear breather. Completed 5.9.36. Mod. to rocker cover and cylinder head - to clear cowling rail. In hand. Mod. to induction pipe, to give more clearance for set screws. Completed 15.9.36. | ||