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 the engine jacket water and heat dissipated by the radiator for a 40/50 HP car.
| Identifier | WestWitteringFiles\L\July1924-September1924\ Scan31 | |
| Date | 1st September 1924 guessed | |
| SHEET 1.1 40/50 H.P. 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. " ② " " " " 1/2 LOAD. " ③ " " " " 1/4 LOAD. AVGE AIR TEMP 22°C. TOP WATER TEMP AVERAGED 90° FOR ALL TESTS. HEAT GIVEN TO WATER FULL LOAD HEAT DISSIPATED BY RADIATOR WITHOUT BONNET HEAT DISSIPATED BY RADIATOR WITH BONNET B. Th. Us / MINUTE R.P.M. ENGINE. | ||