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).
Performance comparison graph for different types of oil coolers, plotting heat dissipation, pressure drop, and flow rates.
| Identifier | ExFiles\Box 150\3\ scan0060 | |
| Date | 1st October 1936 | |
| WATER FLOW - LBS/MIN. OIL FLOW LBS/MIN. HEAT DISSIPATION BTHUS/HR/63°F TEMP. DIFF. OIL PRESSURE DROP ACROSS COOLER - INS. HG. COMPARISON OF OIL COOLERS. GALLAY COOLER. RR COOLER (LARGE HEX). RR COOLER (SMALL HEX). B.TH.U'S V. {VIENNA} WATER FLOW. B.TH.U'S V. {VIENNA} OIL FLOW. OIL PRESS. DROP V. {VIENNA} OIL FLOW (CONST. OIL MEAN TEMP = 70° F). CONSTANT OIL FLOW 53 LBS/MIN. CONSTANT WATER FLOW 103 LBS/MIN. B. S. Steadman. | ||