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).
Graph showing heat given to jacket water and dissipated by the radiator for a 40/50 HP car.
| Identifier | ExFiles\Box 38\2\ Scan234 | |
| Date | 11th September 1926 guessed | |
| SHEET 1 40/50 HP. CAR. CURVES SHOWING HEAT GIVEN TO JACKET WATER BY ENGINE AND HEAT DISSIPATED BY RADIATOR WITH & WITHOUT BONNET. CURVE ① HT. GIVEN TO WATER FULL LOAD. CURVE ② HT. GIVEN TO WATER 1/2 LOAD. CURVE ③ HT. GIVEN TO WATER 1/4 LOAD. AVGE. AIR TEMP 22°C. TOP WATER TEMP AVERAGED 90° FOR ALL TESTS. B.TH.US./MINUTE. R.P.M. ENGINE. HEAT GIVEN TO WATER FULL LOAD. HEAT DISSIPATED BY RADIATOR WITHOUT BONNET. HEAT DISSIPATED BY RADIATOR WITH BONNET. | ||