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 tests measuring water/oil temperatures and water loss under various conditions.
| Identifier | ExFiles\Box 11\3\ 03-page210 | |
| 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. | ||