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).
Summary of corrosion test rig results for different engine configurations and treatments.
| Identifier | ExFiles\Box 150\3\ scan0365 | |
| Date | 21th February 1938 guessed | |
| CORROSION TEST RIG RESULTS. SHEET 1. CONDITION OF TEST. NO. HOURS RUNNING. NO. HOURS STANDING. TOTAL HOURS. REMARKS ON CORROSION ETC. OBSERVED AT END OF TEST. (1) STANDARD ENGINE NO HOT SPOT BOX FITTED. 100 404 504 SLIGHT CORROSION - NO DISCOLORATION OF WATER OR SEDIMENT IN RADIATOR. (2) STANDARD ENGINE WITH C.I. HOT SPOT BOX FITTED. 100 955 1055 CORROSION GREATER THAN AFTER (1) BUT NOT ENOUGH TO ATTRIBUTE SAME TO PRESENCE OF HOT SPOT BOX. (3) ANODICALLY TREATED ENGINE, (ALUMINIUM HOT SPOT BOX ALSO TREATED) 200 906 1106 VERY SLIGHT CORROSION IN ISOLATED SPOTS BUT NEGLIGABLE COMPARED WITH TEST (2). NOTE :- CORROSION REFERRED TO IS CORROSION OF ALUMINIUM C/CASE & CYL: HEAD WATER JACKETS. | ||