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).
Requesting the manufacture of two steel and two bronze cones and reporting issues with a previous design.
| Identifier | ExFiles\Box 94\1\ scan0313 | |
| Date | 28th January 1936 | |
| X328 To RHC.{R. H. Coverley - Production Engineer} Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux}4/JH. 28.1.36. Will you please make two steel and two bronze cones to scheme RM.{William Robotham - Chief Engineer}58. A and B. These are to replace the 7° cones that were made. The results of those were good until the oil became hot when sticking of the cones took place. Hs{Lord Ernest Hives - Chair}/GWH.{George W. Hancock - Head Chateauroux} | ||