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).
Line graph plotting top and bottom water temperatures against seven different test configurations for a car at Brooklands.
| Identifier | ExFiles\Box 24\5\ Scan268 | |
| Date | 2nd July 1930 | |
| GRAPH III TEMPERATURE C° (1) FULL WEAK NO FAN. (2) AS (1) BUT MIXTURE NORMAL NO FAN. (3) AS (2) BUT FAN SPRING LOADED (4) AS (3) BUT FAN BELT CHOC À BLOC. (5) AS (4) BUT FAN 1" NEARER RAD. (6) AS (5) BUT DOUBLE RAD. OUTLET (7) AS (6) BUT ALL BONNET SHUTTERS OPEN. TOP WATER TEMP BOTTOM WATER TEMP CONDITIONS FOR TEST (1) ALL BONNET SHUTTERS CLOSED STANDARD UNDERSHIELD 62.5 M.P.H. ATS TEMP: 20°C 19 EX CAR 11x41 AXLE BROOKLANDS TEST 2/7/30 | ||