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 for Merlin 'G' and 'H' engine components and modifications.
| Identifier | ExFiles\Box 161a\4\ scan0110 | |
| Date | 9th July 1936 guessed | |
| ITEM. (10) DESIGN POSITION. MERLIN "G" ENGINE - CONTINUED: Priming pipes and elbow. Completed 10.7.36. Piston 6:1 ratio. " 6.8.36. " 6 1/2:1 ratio. " 6.8.36. Mod. to exhaust manifold flange. " 10.7.36. Mod. to cyls. blind stud bosses in exhaust flange. " 17.7.36. Hele Shaw Airscrew - layout of oil pipes. In hand. Ignition wire conduits. In hand. Top water rails - front outlet. In hand. MERLIN "H" ENGINE. Priming pipes. Completed 7.7.36. Top water rails - front connections. " 14.7.36. Ramp top piston - 6 1/2 : 1 compression ratio. " 17.7.36. Auxiliary drives on cylinder head - wider camshaft gears. " 6.7.36. Modified side coolant outlet connection. " 8.7.36. Mod. to cylinders - blind stud bosses in exhaust flange. " 31.7.36. Mod. to top water rails. " 1.8.36. | ||