A long-range patrol flying boat of the 1930's, the PH-3 had a range of over 2000 miles. They were the "big boats" of the Coast Guard's aerial patrol fleet at that time.
Categories: Aircraft
 
 
Thank you to the Mario Family Foundation for enabling the digitization of the U.S. Naval Institute’s Photo Archive. The physical photos in the Photo Archive are stored in the Mildred M. Mario Photo Archive Room located at the U.S. Naval Institute’s Headquarters in Annapolis, MD.

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