13856686

Wall Art and Photo Gifts from Mary Evans Picture Library

13856686

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

Media ID 32300494

© Aviation Ancestry

VISUAL DESCRIPTION
This is a vintage advertisement or informational graphic highlighting the "Outstanding features of the De Havilland HYDROMATIC quick-feathering airscrew. " The image showcases components of an aircraft propeller system, specifically focusing on the spring preloading mechanism of the blade gear segment. It illustrates part of a propeller blade along with detailed views of the gear mechanism that would allow for precise control over blade pitch, contributing to efficient and responsive operation during flight. The text emphasizes how instead of relying solely attached to the hub, each gear segment is ensured to be under tension by a series of springs, which provides uniformity in pitch between all blades. This technology was likely cutting-edge at its time and represented advancements in aviation engineering for better performance and safety.

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