Requesting design modifications and drawings for Merlin engine connecting rods, a hydraulic tappet, and a die-cast piston.
| Identifier | ExFiles\Box 158\5\ scan0097 | |
| Date | 13th November 1940 | |
| 186 Rm {William Robotham - Chief Engineer} /HH. From Rm. {William Robotham - Chief Engineer} Tappet Rm. {William Robotham - Chief Engineer} 1/ML.13.11.40. Will you please look into the following :- 1. We want a simplified "MerlinAero Engine" forked and plain rod detailing. We did a simplified and only partially machined rod for the P.III. but I believe it altered the big end. We want to stick exactly to P.III big end practice with A.C.9. bearings but cut out as much machining as possible. The weight can go up slightly. 2. We want a detail drawing of the Hydraulic Tappet model herewith. Miss Lander has Swdl {Len H. Swindell} 's sketches. 3. We want a die-cast MerlinAero Engine piston detailing to be made by Aerolite having the same form grinding as existing MerlinAero Engine piston. Rm. {William Robotham - Chief Engineer} | ||
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).