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 superior rust-resistant Armco Iron material used for water jackets on American engines.
| Identifier | ExFiles\Box 38\6\ Scan039 | |
| Date | 5th November 1918 | |
| R.R. 23A B (200 T) (S.E. 527. 21-2-18) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2149 5 NOV 1918 X 8381 C. from BY.{R.W. Bailey - Chief Engineer} C. [redacted] C. Mr. [redacted] C. RFC. C. Mr Hives. RECEIVED November 5. 1918. BY3/F51118. AMERICAN ENGINES. RE WATER JACKETS. I give below an extract from Mr Nadin's memo Na{Mr Nadin}2/K161018, in which he points out that the Jackets on the American engines are made from a special material which has a considerably higher resistance to rusting than ordinary mild steel sheet. I am having a number of jackets sent loose from America which will enable us to make a special test of this feature. Extract. "These jackets are made from a material known as Armco Iron-which has a resistance to rust about ten times greater than the ordinary qualities of Mild Steel. It welds very easily and appears to be very suitable for the work". BY.{R.W. Bailey - Chief Engineer} | ||