The Naval Aircraft Factory PN was a series of American flying boats of the 1920s and 1930s. A development of the Felixstowe F5L flying boat of the First World War variants of the PN were built for the United States Navy by Douglas Keystone Aircraft and Martin.
Made by Naval Aircraft Factory.
It is the successor of the Felixstowe F5L ,
Naval Aircraft Factory PN is the predecessor of the Hall PH.