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).
Modified servo drive and alterations for B.111, B.50 and B.60 gear boxes.
| Identifier | ExFiles\Box 136\4\ scan0230 | |
| Date | 25th August 1938 | |
| RY/NS{Norman Scott} C. Rm.{William Robotham - Chief Engineer} 1153 DA.{Bernard Day - Chassis Design}7/G.25.8.38. AFM{Anthony F. Martindale} B.111, B.50 and B.60. GEAR BOX. Please receive herewith PD.222 shewing the modified servo drive to facilitate assembly and consequential alterations to gear box features. A print has already been handed to you for detailing. Details required for next 4 gear boxes. DA.{Bernard Day - Chassis Design} Basset | ||