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).
List of six modifications to be carried out on the No.7 unit before it is handed over for transport.
| Identifier | ExFiles\Box 108\3\ scan0246 | |
| Date | 15th July 1938 | |
| Y 600a To HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} c. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell}8/MH.{M. Huckerby}15.7.38. 26.G.VI. We have decided to retain No.7 unit in this car which should be modified as follows before handing over for transport - (1) Up to date standard wraith small valve cylinder head with inclined push rod tubes. (2) Latest standard Attwater camwheel as existing to be checked over for wear. If O.K. fit inertia rings Rm.{William Robotham - Chief Engineer}547, if not fit new camwheel also with inertia rings fitted. (3) Increased flexible dynamo rubbers to be fitted which Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} will supply.. (4) Fit "General" filter in place of existing AC filter as per B.III No.5. (5) Fit .030 Klingerit cylinder head gasket which Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} will supply. (6) Fit rubbers in place of springs under rocker cover nuts Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} will supply. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} | ||