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Napier Lion W-12 aircraft engine
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Napier Lion W-12 aircraft engine
Napier Lion water-cooled W-12 aircraft Engine running on the test-bed. Date: 1970s
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Media ID 21130621
© The Peter Butt Aviation Collection / Mary Evans
Lion Napier Running Test Bed Water Cooled
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EDITORS COMMENTS
In this photograph from the 1970s, the Napier Lion W-12 aircraft engine roars to life on a test bed, its raw power and intricate design on full display. The Napier Lion was a water-cooled, W-12 aero engine produced by the British engineering company Napier and Son Ltd. between 1915 and 1932. This particular engine, with its distinctive cylindrical shape and complex arrangement of twelve cylinders, was a marvel of engineering innovation during its time. The Napier Lion engine was initially developed for use in the Royal Flying Corps during World War I, powering various aircraft such as the Sopwith Camel and the Airco DH.4. Its advanced design, which featured a unique W-configuration and a water-cooling system, allowed for increased power output and improved engine efficiency compared to contemporary V-12 engines. Despite its impressive capabilities, the Napier Lion engine was eventually replaced in the 1930s by more advanced designs. However, its legacy lived on, as it paved the way for future aero engine developments and set new standards for engine performance. This photograph captures a rare moment in aviation history, as the Napier Lion engine is brought back to life on a test bed. The steam rising from the engine's cooling system and the intense glow of the flames indicate the engine's immense power, while the surrounding equipment and personnel underscore the complex engineering processes required to bring such a machine to life. Overall, this image is a testament to the ingenuity and determination of the engineers who designed and built the Napier Lion engine, and to the enduring allure of aviation technology.
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