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).
Standardisation of turned finish for Wraith III and Bentley III crankshafts following a 40hr endurance test.
| Identifier | ExFiles\Box 99\1\ scan0107 | |
| Date | 13th May 1938 | |
| 417 also 617- To By.{R.W. Bailey - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to By/CS. c. to HLS. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}4/JR.{Mr James Royce}13.5.38. WRAITH III & BENTLEY III CRANKSHAFTS. Following the satisfactory 40hr. endurance completed on Bentley II with turned finish crankshaft webs standardisation sheets have been issued for Bentley II and Phantom III cranks to be produced this way. Likewise this turned finish of the webs should be adopted for Wraith and Bentley, the drawings modified to show this and all future crankshafts to produced accordingly. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||