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).
Graph showing the rise of air temperature through a radiator matrix versus road speed at two different engine water temperatures.
| Identifier | ExFiles\Box 12\7\ 07-page186 | |
| Date | 16th September 1931 | |
| 16-9-31 CHASSIS 19 EX. RISE OF AIR TEMPERATURE THROUGH RADIATOR MATRIX MATRIX TUBES 6x7.5MM. WITH 4 INDENTATIONS. TESTS CARRIED OUT WITH NO BONNET OR UNDERSHIELDS FITTED IN TOP GEAR. ENGINE WATER TEMP. 63°C. ENGINE WATER TEMP. 85°C. AIR TEMP RISE THRO' MATRIX (DEGREES C.) ROAD SPEED (M.P.H.) | ||