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).
Chart showing the variation in pressure drop across oil cooler No.1 due to changes in oil flow, oil temperature, and water flow.
| Identifier | ExFiles\Box 131\1\ scan0219 | |
| Date | 17th March 1926 | |
| ROLLS ROYCE OIL COOLER No 1 CHART SHOWING THE VARIATION IN PRESSURE DROP ACROSS COOLER DUE TO CHANGE OF OIL FLOW, OIL TEMP. AND WATER FLOW. FOR FULL DETAILS OF COOLER SEE CHART 0/32/B.1 Diagram labels: WATER OIL Axes labels: Top X-Axis: MEAN OIL TEMPERATURE °F (100, 150, 200) Middle X-Axis: WATER FLOW LBS/MIN (50, 100, 150) Bottom X-Axis: OIL FLOW LBS/MIN (25, 50, 75, 100) Y-Axis: PRESSURE DROP ACROSS COOLER, INCHES OF MERCURY (2.5, 5.0, 7.5) Data box: CONSTANT WATER TEMP. 175°F MEAN " OIL " 202°F MEAN " OIL FLOW = 53 LBS/MIN. " WATER " = 106 " " Graph line labels: OIL PRESS. DROP v.{VIENNA} OIL TEMP WATER PRESS. DROP v.{VIENNA} WATER FLOW OIL PRESS. DROP v.{VIENNA} OIL FLOW Bottom right corner: EWS 17/3/26 TANK WORKS | ||