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).
Test report detailing cooling system performance under various conditions, including different shutter, fan, and thermostat configurations.
| Identifier | ExFiles\Box 29\3\ Scan256 | |
| Date | 17th July 1930 guessed | |
| -3- 9° 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 10° 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 11° 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 12° 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. 13° 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. 14° 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. 85.5 76 76 19.5 89 77.5 73.5 19.5 | ||