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).
Blueprint with graphs detailing the effect of water circulation on overheating in a PII water system for a 19 Ex. car.
| Identifier | ExFiles\Box 24\5\ Scan267 | |
| Date | 2nd July 1930 guessed | |
| GRAPH II EFFECT OF CIRCULATION ON OVERHEATING CIRCULATION ON PII WATER SYSTEM A 19 Ex. CAR A BACK PRESS CAUSED BY RESTRICTION 15 LBS/SQ.IN. WATER OUTLET FROM THE CYL. BLOCK RESTRICTED TO 23-.125 HOLES. TOP WATER TEMP ATS TEMP. 20°C TOP WATER TEMP. C° SHUTTERS OPEN. SHUTTERS CLOSED STANDARD RESTRICTED CIRCULATION. ROAD SPEED 75 M.P.H. B RAD: E.79448 6 7/8 TUBES. MEAN BOTTOM WATER TEMP. 67°C RAD E.79321 FLOW GAL/MIN ENGINE R.P.M. TWO RAD OUTLETS SINGLE RAD OUTLETS RESTRICTION OF 23 .125 HOLES IN OUTLET PIPE. 65 M.P.H. C CIRCULATION ON PII WATER SYSTEM AT HIGH TEMPERATURES. CIRCULATION GAL/MIN BOTTOM WATER TEMP: C° DOUBLE RAD OUTLET SINGLE RAD OUTLET ENGINE R.P.M 2500 DOUBLE RADIATOR OUTLET. 6 m/m TUBES 7.5 m/m TUBES 4.0'' 23.6'' 26.8'' | ||