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).
Alteration notice regarding the removal of surplus metal from the exhaust port of a B40 crankcase and cylinders casting.
| Identifier | ExFiles\Box 124\2\ scan0077 | |
| Date | 18th March 1940 guessed | |
| To Rm.{William Robotham - Chief Engineer} 116/RE 1074 18th March Flu B40 Section 5000 RE 107. Crankcase and Cylinders. Sheet 2. Alteration Section thro' Exhaust Port M/c shown to remove surplus metal. Reason. Due to castings "building up" at this point No ALTERATION to PATTERN. Aew Saw | ||