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).
Cost analysis for a standardisation sheet concerning new and old tappets.
| Identifier | ExFiles\Box 66a\2\ scan0042 | |
| Date | 5th October 1926 | |
| COPY. To Hs.{Lord Ernest Hives - Chair} from My/RB.{R. Bowen} My/RB{R. Bowen}13/M/139A/BJ5.10.26. STANDARDISATION SHEET X. 8060/7060. Returned herewith above std. sheet. You will note we estimate no difference in cost because the extra cost of the new tappets counterbalance the saving in dismantling cost necessary to quieten the old tappets. My/Rb.{R. Bowen} | ||