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 plotting air temperature increase against road speed for tests on a radiator and air flow to the floorboards.
| Identifier | ExFiles\Box 182\M19\ img289 | |
| Date | 23th September 1931 | |
| TESTS:- AIR TEMPERATURE RISE ACROSS RADIATOR AIR TEMPERATURE RISE FROM FRONT OF RADIATOR TO FLOOR BOARDS. USING - 26B" HEXAGONAL MATRIX TUBES. (AVERAGE AIR TEMP: 11.5°C) WATER TEMP:- 53.5°C WATER TEMP:- 81.5°C BONNET ON (AVERAGE AIR TEMP: 13°C) CYLINDER WATER TEMP:- 54°C CYLINDER WATER TEMP:- 85°C AIR TEMPERATURE INCREASE (°C) SHADED AREA REPRESENTS AIR TEMP: INCREASE DUE TO EXHAUST AND ENGINE HEAT RADIATION. ROAD SPEED (M.P.H) ACROSS RADIATOR:- 1) LOW WATER TEMP: 2) HIGH WATER TEMP: FRONT OF RADIATOR TO FLOORBOARDS:- 1) LOW WATER TEMP: 2) HIGH WATER TEMP: | ||