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).
Material selection for a rear axle casing, specifically 3% Nickel steel.
| Identifier | ExFiles\Box 49\1\ Scan119 | |
| Date | 15th December 1919 | |
| X.3769 To EN. from R. {Sir Henry Royce} Copy to CJ. " " WOR. {Arthur Wormald - General Works Manager} " " BY. {R.W. Bailey - Chief Engineer} " " DA. {Bernard Day - Chassis Design} " " HS. {Lord Ernest Hives - Chair} " " CK. {Mr Clark} " " HL. 3469. X.5414 - RE MATERIAL FOR REAR AXLE CASING.(3% Nickel) With reference to your memo BN {W.O. Bentley / Mr Barrington} 8/W11.12.19, providing drop forgers can see no extra risk of drop forging this material I should have the better quality fitted to the next test car. Cars in France are going through most terrible times, owing to the dreadful state of the raod, in fact a very severe bumping test as bad as during the War. Let me know if these parts have been effectively heat treated to the satisfaction of Mr. Hall. R. {Sir Henry Royce} | ||