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Aviation History
1929
1929 - 0079.PDF
JANUARY 10, 1929 BE SAFE BE SURE BE THE SMITH OIL AND FUEL GAUGE.The most compact oil gauge on the market. Supplied in various rangesof calibration up to 500 lbs. Type No. AA.4O7. THE SMITH "TIME OF FLIGHT"CLOCK. A reliable clock working on a uniqueprinciple. The subsidiary dial records the time of Flight in hours and minutes,and can be re-set to Zero at any time. Type No. AA.681. THE SMITH AVIATION WATCH. A reliable 8-day watch in a special instrument-board case. Compensated lever movement entirely unaffected, by temperature variations. Type No. AA.684. THE NEW SMITH ALTIMETER. Of reduced dimensions and weight, and specially designed with the object of reducing weight and size as compared with the standard Altimeter, and at the same time to maintain the degree of accuracy required by the British A.I.D. Bezel reset. Calibrations arranged in feet or metres to suit all requirements. Overall dia., 3J in. Weight, only 1 If ozs. Dial dia., 3 in. Type AV. 572. THE SMITH RADIATOR THERMOMETER. A neat and compact instrument, yet of particularly robust construction. Calibrated from 50 to 100 degrees centi- grade. Boiling points at the various altitudes are indicated on the dial. Type No. AV.437. THE SMITH REVOLUTIONINDICATOR. Operated on the well-proven scientificprinciple. This redesigned Instrument embodies many improvements. TheBold and correctly balanced Pointer and clearly denned figures ensure perfectlysteady reading at all speeds. Every Instrument individually calibrated andto the requirements of the British A.I.D. Calibrations and gear ratios to suit all types of engines. Overall dia., 5J in. Dial dia., 4 in.Weight, only 34 ozs. Type AV. 503. CONTRACTORS TO H.M. AIR MINISTRY, FO REIGN GOVER NME NT S, AIRCRAFT CONSTRUCTORS, AND AIR LINES THROUGHOUT THE WORLD. THE SMITH AIRSPEED INDICATOR. Manufactured to the limits of accuracy required by the British A.I.D. Cali- brations to upwards of 400 m.p.h. (or equivalent in knots or kilos) if required. Overall dia., 5i in. Dial dia., 3| in Weight, only 21 ozs. Type AA. 541. S. SMITH & SONS (M.A.) LTD., AVIATION INSTRUMENT SPECIALISTS, SOLE EXPORT DISTRIBUTORS FOR K.L.G. SPARKING PLUGS. [Manufactured by The Robinhood Enzineering Works, Ltd., Putney, S.W.) CRICKLEWOOD WORKS, LONDON, N.W.2. IhCDKPOBlTFDBVROYAL CHARTER •Save time by using the Air Mail. xvii
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