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).
Machining and broaching operations for Phantom gearboxes on material with a Brinell figure of 360 to 380.
| Identifier | ExFiles\Box 94\2\ scan0124 | |
| Date | 15th December 1936 | |
| H.{Arthur M. Hanbury - Head Complaints} from RHC{R. H. Coverley - Production Engineer}/FM. C. to EH. C. to H-S. C. to R'Wby. C. to Hs.{Lord Ernest Hives - Chair} GTY - 32 HBC/FM.5/HS.{Lord Ernest Hives - Chair}15.12.36. PHANTOM GEARBOXES. Many thanks for memo E.5/FP.{F. Potts}14.12.36. We have no doubts whatever that machining and broaching operations can be carried out on material with a Brinell figure of 360 to 380 and therefore do not anticipate any trouble in this direction. (Signature) RHC{R. H. Coverley - Production Engineer}/FM | ||