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).
Urgent testing of ball bearings for the Spectre Gearbox.
| Identifier | ExFiles\Box 94\1\ scan0124 | |
| Date | 17th May 1935 | |
| x328 Rm{William Robotham - Chief Engineer} Grey To RHC.{R. H. Coverley - Production Engineer} from HDY.{William Hardy} SECRET HDY.{William Hardy}/5/HP.17.5.35. c. Hs.{Lord Ernest Hives - Chair} B. Ey. SpectreCodename for Phantom III Gearbox. Would you kindly let us know when you expect to have a gearbox completed with ball bearings in place of roller bearings, to our N. Sch.4405, issued by us on 8.3.35. We regard the testing of these bearings for silence and durability as urgent as if they should prove to be inadequate, pattern alterations may be involved. HDY.{William Hardy} | ||