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).
Series of cooling system performance tests measuring water, oil, and air temperatures under various conditions.
| Identifier | ExFiles\Box 24\5\ Scan303 | |
| Date | 17th July 1930 guessed | |
| -3- 9º Standard test at 60 M.P.H. with all bonnet shutters open. Top water Temp. Bottom water Temp. Oil Temp. Air Temp. 81. 74.5 78 18 81 75 78 18 81 75 79 18 10º Fan belt slacked off with all bonnet shutters open, 60 M.P.H. Top water Temp. Bottom water Temp. Oil Temp. Air Temp. 86 79.5 79 18 87 80.5 80 18.25 87.5 81 81 18.25 87.5 81 82 18.25 11º Fan right off with all bonnet shutters open, 60 M.P.H. Top water Temp. Bottom water Temp. Oil Temp. Air Temp. 91 84 82.5 19.25 91 84 83 19.25 91 84 85 19.25 12º Thermostat removed. Shutters held full open. Test for loss of water at 60 M.P.H. Checked up against No.2 test. .125 gall. of water lost. 13º Thermostat removed. Shutters held full open. Test for loss of water at 70 M.P.H. Checked up against No.3 test. .250 gall. of water lost. 14º Radiator shutters taken off. Temp. test at 60 M.P.H. Checked up against No.9 test. Top water Temp. Bottom water Temp. Oil Temp. Air Temp. 83.5 76 76 19.5 83 77.5 77.5 19.5 83 77.5 77.5 19.5 | ||