This Day in Aviation History
February 18th, 1939
First flight of the Martin PBM Mariner.

The Martin PBM Mariner was a patrol bomber flying boat of World War II and the early Cold War period. It was designed to complement the Consolidated PBY Catalina in service. A total of 1,366 were built, with the first example flying on 18 February 1939 and the type entering service in September 1940….

Wikipedia, Martin PBM Mariner:

YouTube, Martin PBM Mariner:

YouTube, The Last Mariner:

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