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 sheet listing modifications for the Merlin 'F' engine and their completion status.
| Identifier | ExFiles\Box 161a\4\ scan0095 | |
| Date | 2nd July 1936 guessed | |
| ITEM. (sheet 9) DESIGN POSITION. MERLIN "F" ENGINE. - CONTINUED. Modified lateral bolts and drilled main bearing caps for bearing oil pressure readings. Completed 18.6.36. Modification to oil pipe connection - No.5. bearing. Completed 19.6.36. Mixture control and boost control unit cutout - travel of pilots control levers for throttle-two position - to suit R.R.boost control. Completed 17.6.36. Modification to inlet sparking plug adapter. Completed 19.6.36. Modification to rear ball bearing housing - spring drive. Completed. Modification to Lockheed pump drive - for first two Fairey machines. Completed 25.6.36. Modification to supercharger rear casing. Completed 25.6.36. Lowered inlet for coolant pump. Completed 25.6.36. R.A.E. air compressor drain. Completed 26.6.36. Flanged cone plugs - supercharger front volute casing. Completed 26.6.36. Oil pipe - pressure pump to relief valve - to clear "Battle" frame. Completed 25.6.36. Mod. to oil pipe - relief valve to V.P. airscrew. Completed 25.6.36. Modified screw and locking tab - No.5 oil pipe connection. In hand. Release holes in pinion shaft - starter gear. Completed 2.7.36. Mod. to conduit screened ignition wiring. Completed 16.6.36. Widened auxiliary driving gears, rear cylinder head. In hand. | ||