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 dissipation and pressure characteristics for oil cooling tube H (016).
| Identifier | ExFiles\Box 149a\2\ scan0318 | |
| Date | 23th August 1935 | |
| OIL COOLING CHART N° CX.{Major Len W. Cox - Advertising Manager}107/1 DISSIPATION OF TUBE H (016) 22/3/4/19/18/4/231/43.3/7/8 N°30 OIL MEAN TEMP = 170°F AIR INLET = 70°F AIR VELOCITY = 1200FT/MIN (CONSTANT) OIL FLOW (MOBILOIL A) = 20.5 LBS/MIN INTERNAL WOUND (OPEN) AIR VELOCITY IN FT./MIN. 500, 1000, 1500 DISSIPATION TO OIL FLOW DISSIPATION TO AIR FLOW PRESSURE V OIL FLOW PRESSURE IN LBS/□ PER FT. LBS/OIL/MIN/TUBE B.T.U'S. PER HR. PER FT. RUN AT 100° T.D. AIR INLET TO MEAN OIL TEMP. E.W.S 23/8/35 | ||