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).
Confirming the dispatch of schematics for an All Helical Spectre Gearbox.
| Identifier | ExFiles\Box 94\1\ scan0007 | |
| Date | 19th May 1934 | |
| Handwritten: X4694 328 GRY{Shadwell Grylls} Typed: To BY.{R.W. Bailey - Chief Engineer} from HDY.{William Hardy} HDY.{William Hardy}1/HP.19.5.34. C. Mr. For. Mr. Hs.{Lord Ernest Hives - Chair} Dr. RMC. All Helical SpectreCodename for Phantom III Gearbox. We send you herewith W. Sch.4049 which shows the gear, shafts and bearings for this box, and we also send a preliminary print of W. Sch.4050 which shows the rear half actuating mechanism and case. HDY.{William Hardy} | ||