13883705

Wall Art and Photo Gifts from Mary Evans Picture Library

13883705

Mary Evans Picture Library makes available wonderful images created for people to enjoy over the centuries

Media ID 32335632

© Aviation Ancestry

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> Arts > Artists > P > those present

> Mary Evans Prints Online > New Images July 2023

VISUAL DESCRIPTION
The second advertisement presents a compelling visual narrative for the Kelvin Maximum Safe Airspeed Indicator. It illustrates how concentric pointers on one dial offer pilots an unmistakable warning as they approach critical Mach numbers—a significant concern during high-speed flight regimes. The integration with an altimeter provides continuous updates on safe airspeed relative to altitude changes, reinforcing safety protocols in-flight operations. Through this monochromatic depiction, we glimpse into historical advancements that shaped modern avionics—where precision instruments like those from Kelvin Bottomley & Baird Limited were pivotal in navigating the skies safely.

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