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).
Secret memo urging progress on experimental work for 'Forced Fit Knurled Assemblies' which is conditional for the Wraith design.
| Identifier | ExFiles\Box 133\4\ scan0054 | |
| Date | 28th January 1937 | |
| SECRET. 1125. Please report progress Rm.{William Robotham - Chief Engineer} DES Rm.{William Robotham - Chief Engineer} HPS.{Horace Percy Smith - Experimental Factory Mgr} } from E.{Mr Elliott - Chief Engineer} E.2/HP.28.1.37. Forced Fit Knurled Assemblies. We should be glad if you could urge the experimental work being done in connection with the above as a certain amount of Wraith design is conditional on the success of this scheme. E.{Mr Elliott - Chief Engineer} | ||