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).
Transmitting blueprints for the B.40 3 1/2 Bore Engine's connecting rod and piston.
| Identifier | ExFiles\Box 134\5\ scan0064 | |
| Date | 15th May 1940 | |
| To Rm.{William Robotham - Chief Engineer} a to Ev.{Ivan Evernden - coachwork} 1133 file. Rm{William Robotham - Chief Engineer}/HH.4 JH.15.5.40. B.40 3 1/2 Bore Engine. Section 5030 Connecting Rod. Section 5040 Piston. Please receive herewith blue prints of the following new L.O.P.'s. Section 5030. RE.1078 Connecting rod L.O.P. Section 5040. RE.1073 Piston L.O.P. Please instruct up as required. Rm{William Robotham - Chief Engineer}/HH. | ||