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).
Cabin heating and wind tunnel testing procedures.
| Identifier | ExFiles\Box 150\2\ scan0291 | |
| Date | 12th January 1940 | |
| - 2 - Continued:- carried out with a standard Marston block and a Serck block which is available. 5. CABIN HEATING. The few remarks were passed on the above subject but as air is passed into the cabin, in virtue of the machine's motion, and obviously no troubles with regard to noise, etc. would be experienced. 6. WIND TUNNEL TESTS. The small wind tunnel in existance at Hucknall is used principally for testing oil coolers, and small sections of radiator matrices. The apparatus consists of a large centrifugal fan with a long tunnel connected on the suction side, tapering down from about 2ft. diameter, at the fan to approximately 1 ft. diameter, for a length of some 4 ft. This continues in the parallel form for about 6 ft. to an oil cooler. The air flows and velocities were measured by means of Pitot tubes placed before the oil cooler. The oil flows was regulated by a system of stop valves with a vernier by pass valve for small adjustments, measurements being by positive displacements. Temperatures were measured on standard glass thermometers. Rm {William Robotham - Chief Engineer} /Ed {J. L. Edwards} | ||