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).
Instructing a change in the angle of Servo cams from 35° to 30° and for the modification to be made retrospective.
| Identifier | ExFiles\Box 152\2\ scan0256 | |
| Date | 17th April 1939 | |
| 1294 To: EY/CRL.{C. R. Lisson} c. to HFS. c. to Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} BY/NS.{Norman Scott}4/MG.17.4.39 B.V and B.50 SERVO In accordance with Memo: Da{Bernard Day - Chassis Design}9/G.15.4.39, kindly arrange for the Servo cams to have an angle of 30° instead of 35° as at present. This modification is necessary because it has been decided to use VG.90 Lining. Will Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale} please arrange for this modification to be made retrospective on all experimental chassis fitted with hydraulic front brakes. BY/NS.{Norman Scott} | ||