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 and cheaper fan mounting design for the Power Head Engine, superseding a previous version.
| Identifier | ExFiles\Box 112\2\ scan0123 | |
| Date | 19th May 1938 | |
| PY/MS. c. Rm.{William Robotham - Chief Engineer} 824 835 DA.{Bernard Day - Chassis Design}6/G.19.5.38. B.50. POWER HEAD ENGINE. STD holm Rm{William Robotham - Chief Engineer}/SPO Please receive E.CD.678 modified fan mounting on the same lines as BY/Ald.{F. Allwood - Experimental Design} design, which has been requested by Steadman as being cheaper than E.CD.442 which is now superseded. DA.{Bernard Day - Chassis Design} | ||