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 temperature and pressure readings between a standard and a B.W.P. variable level oil intake device.
| Identifier | ExFiles\Box 135\3\ scan0087 | |
| Date | 25th October 1934 guessed | |
| 13. made with everything identical with the exception of the incorporation of the B.W.P. variable level oil intake device. RUN No. 1. Using manufacturer's standard equipment. Time Oil Temperature Room Temperature Oil Pressure Zero 0 -1° 0° 28 lbs 1 -1° 0 0 2 -1° 0 ½ 3 -1° 0 0 4 -½° 0 2 5 0° 0 0 6 1° 0 0 7 1½° 0 ½ 8 2° 0 2 9 2° 0 8 10 2½° ½ 0 11 4° ½ 2 12 6° ½ 4 13 7° 1 ½ 14 7° 1 2 (Note) The constant fluction in pressure continued throughout a period of 37 minutes before constant establishment was obtained; at which time the oil temperature was 13 degrees and room temperature raised to 3-1/2°. RUN No.2. Using The B.W.P. Variable Level Oil Intake. Time Oil Temperature Room Temperature Oil Pressure 0 0 0 28 lbs. 1 ½ 0 28 lbs. 2 2 0 28 lbs. 3 2½ 0 28 lbs. | ||