Request to determine the Brinell hardness of eroded valve seats after endurance tests.
| Identifier | ExFiles\Box 96\2\ scan0117 | |
| Date | 12th June 1936 | |
| To Hs {Lord Ernest Hives - Chair} /Swdl. {Len H. Swindell} x 354 Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} 19/KW.12.6.36. We should like to know the Brinell of the valve seats which have eroded on all endurance tests. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} | ||
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).