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).
Two graphs illustrating Peregrine oil temperature improvements and Potts oil cooler efficiency.
| Identifier | ExFiles\Box 179b\3\ img321 | |
| Date | 8th February 1933 guessed | |
| PEREGRINE OIL TEMPERATURE HS.{Lord Ernest Hives - Chair}960 EFFECT OF SPRAYING OIL ON TO RIBBED BOTTOM HALF AS IN PHOTOGRAPH LEFT Y-AXIS: INCREASE IN B.Th.U's DISSIPATED BY SUMP BY OIL TURBULENCE RIGHT Y-AXIS: % IMPROVEMENT OF BOTTOM HALF AS A COOLER X-AXIS: OIL INLET TO BEARINGS C° DASHED LINE: INCREASED B.Th.U's DISSIPATED SOLID LINE: % IMPROVEMENT EFFICIENCY OF POTTS OIL COOLER AT VARYING RATES OF FLOW HS.{Lord Ernest Hives - Chair}960 Y-AXIS: OIL FLOW LITRES / MIN X-AXIS: HEAT TRANSFER / ☐ FT. | ||