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).
Comparison of oil pressure test results using a conventional suction device versus a B.W.P. device.
| Identifier | ExFiles\Box 135\3\ scan0089 | |
| Date | 25th October 1934 guessed | |
| 15. RESULT OF TEST: Time in Seconds. Air temperature. Oil temperature. Oil pressure. 0 76 76 35 lbs 1 76 76 35 2 76 76 35 3 76 76 35 4 76 76 30 5 76 76 15 6 76 76 0 Showing that the oil pressure was lost with the use of the conventional suction device in six seconds. Using the B.W.P. device, Air temperature 79 degrees producing an equivalent to 3 degrees below in terms of Mobiloil "A". Time in MINUTES Air Temperature Oil temperature Oil pressure 0 77 79 35 lbs 1/2 77 79 35 lbs 1 77 79 35 lbs 1 1/2 77 80 35 lbs 2 77 80 35 lbs 3 77 81 35 lbs 4 77 82 35 lbs 5 77 83 35 lbs Note that the oil temperature gradually raised getting well over the danger point of losing pressure. The oil gauge did not register loss in pressure during the run. This duplicates rather closely the results of the manufacturer's tests recorded on previous page. Motion pictures were taken of this latter run and certain stills have been enlarged from this film. The motion pictures depict clearly the | ||