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).
Chemical analysis of four engine springs that performed well.
| Identifier | ExFiles\Box 76\3\ scan0020 | |
| Date | 30th November 1917 | |
| R.R. 98. (21/11) S.D. (205. 15-3-17) M.P. 176550. 4400 (crossed out) ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: Mr Hives Works. 30-11-1917 Order No. Customer's No. Laboratory Analysis of four springs that stood well in the engine. Carbon = .37 Manganese = .70 Chromium = 1.16 Vanadium = .20 Phosphorus = .032 Silicon = .20 Sulphur = .03 Signed: Stott This Sheet must be filed on completion of the work. | ||