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 chart for a Buick oil cooler, comparing heat transmission against water flow.
| Identifier | ExFiles\Box 149a\2\ scan0315 | |
| Date | 4th December 1933 | |
| CHART O/19/FIG.8B BUICK OIL COOLER OIL TO WATER HEAT TRANSMISSION. COMPARISON CHART WITH PERFORMANCE OF OIL COOLERS AS GIVEN IN PAPER BY W.R. RAMSAUR OF LOCKPORT, N.Y. NO. OF TUBES 116 (BUICK) AND 112 - HEX. HONEYCOMB FILM. FILM DEPTH 3/16" (") AND 2 1/4" (CALCULATED) OIL FLOW = 70 GALLS/MIN. OIL INLET TEMP 210°F WATER " " 170 OIL USED - MOBILOIL "A" (BUICK) AND S.A.E. No. 30 BUICK COOLER S.A.E. OIL 30 REDWOOD VISCOSITY AT 190°F = 70 MOBILOIL A.{Mr Adams} " " 190°F = 70 S.A.E. AT 72°F = 2500 MOBILOIL A.{Mr Adams} AT 72°F = 1700 WATER FLOW. GALLONS/MIN. B.T.U.S DISSIPATED/MIN. [Circular Stamp]: ROLLS-ROYCE LTD AERO ENGINE DRAWING OFFICE U.S 4/12/33 | ||