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13884642
Wall Art and Photo Gifts from Mary Evans Picture Library
13884642
Mary Evans Picture Library makes available wonderful images created for people to enjoy over the centuries
Media ID 32337074
© Aviation Ancestry
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VISUAL DESCRIPTION
This is a vintage advertisement for "SMITH Electrially-Heated Pressure Heads, " featuring three different types of aircraft pressure head sensors. Each sensor is designed to be heated electrically to prevent ice formation during flight, which could interfere with the accurate measurement of airspeed and other atmospheric conditions. The models shown are: 1. Type V210, Mk. A & B: Intended for leading edge installation on 12 & 24 volts respectively. 2. Type V211, Mk. VII, B & C: For underwing installation on 12 & 24 volts respectively. 3. Type V212, Mk. VIII E & F: Designed for inverted installation on 12 & 24 volts respectively. Below the images of these devices is a statement emphasizing their function: "PROVIDE ADEQUATE TEMPERATURE RISE TO PREVENT ICE FORMATION ON THE HEAD. " At the bottom of the image is information about the manufacturer's location at that time: SMITHS AIRCRAFT INSTRUMENTS, CRICKLEWOOD WORKS, LONDON, N. W. 2 indicating that this company was based in London and specialized in aircraft instrumentation systems. Overall, this image captures a piece of aviation history where mechanical engineering solutions were critical for safe flight operations in cold weather conditions.
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