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).
The introduction of nickel in cylinder castings and subsequent cylinder bore wear.
| Identifier | ExFiles\Box 130\2\ scan0373 | |
| Date | 31th December 1936 | |
| 1113. Hs.{Lord Ernest Hives - Chair} from Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}12/R.31.12.36. re: Nickel in Castings. I have interviewed Mr. Walker re the introduction of Nickel on the cylinder castings, and upon looking up his files, the 1% to 1.3% nickel was introduced on the 12/7/28. The introduction of the 20/25 H.P., on which Cricklewood states excessive wear of cylinder bores has taken place, was August 1929. We have not any figures relating to the 20 H.P. which was introduced in September 1922. Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} | ||