Comparative temperature tests on two different radiators with varying speeds.
| Identifier | ExFiles\Box 11\3\ 03-page429 | |
| Date | 11th July 1931 | |
| To Hs. {Lord Ernest Hives - Chair} From GWH. {George W. Hancock - Head Chateauroux} Hotel de France, Chateauroux(French test region), France. 11.7.31. TEMPERATURE TESTS 11.7.31. Tests start at 80°C. Radiator fitted with .268 Hexagon Matrix Tubes. BONNET SHUTTERS OPEN | M.P.H. | AIR TEMP | ZAMBRA THERMO. | WATER LOST | |---|---|---|---| | 60 in | 24 | 82.5 | | | 60 out | 24.5 | 81.0 | | | 70 in | 25 | 85 | | | 70 out | 25 | 85 | 2 1/2 pts for 162 miles. | | 80 in | 26 | 88 | | | 80 out | 26 | 87 | | Radiator fitted with .312 Hexagon Matrix Tubes. BONNET SHUTTERS OPEN | | | | | |---|---|---|---| | 60 in | 24.75 | 83 | | | 60 out | 24.5 | 82 | | | 70 in | 24.75 | 87 | | | 70 out | 25.0 | 86 | 1 3/4 pts for 162 miles. | We are disappointed in the comparative tests with the two radiators. At 60 M.P.H. there is nothing in it. at 70 MPH the small tube radiator has it but is not sufficient to be of any value. It would probably have shown an advantage had the 80 MPH test been finished but unfortunately we had to stop the test as the police were on our track. They were very suspicious and we thought it wise to discontinue the test. We shall see how the Hill Climb-Test comes out. G.W.H. | ||
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).