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Aviation History
1952
1952 - 0732.PDF
Flight-, 21 March 1952 175 PRESSURE GAUGE SIMPLIFIED MEASUREMENT OF OIL AND FUEUl Developed in conjunction with the British Engine Manufacturers, the Trans mitter of this new electrical pressure measuring system is designed for direct flange mounting on the engine and is entirely unaffected by vibration, as there are no moving contacts. Indicators may be of the single long scale type or twin scale, and calibrated 0-40, 0-60,or 0-150 p.s.i. for the oil pressure range and 0-75 p.s.i.for fuel pressures. The equipment requires a power supply of 26 volts 400 cycles and a miniature transformer is available so that the system may be used on the standard 115 volt aircraft supply. The power input to the Transformer is 10 VA at -5 Power Factor when the circuit contains a single Inductor Pressure Indicator. Approved by the Air Registration Board and adopted by many British Con structors for Military and Civil Aircraft. Single Indicator in 2i in. S.A.E.case Double Indicator in 31 in. S.A.E. \ O' case. 4 Holes '281 in. dia. (7'143 mm) equispaced as shown on P.C.D. 2178 in. (55-323 mm) 2173 in. (55-196 m;m) SMITHS AIRCRAFT INSTRUMENTS LIMITED The Aviation Division of S. Smith & Sons (England) Ltd. Cricklewood Works, London, NW2 Sole Sales Concessionaires for Kelvin and Hughes (Aviation) Limited • Barkingside and Basingstoke
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