Naval Aircraft Factory PN
FLYING BOAT FAMILY BY THE NAVAL AIRCRAFT FACTORY
Douglas PD; Keystone PK; Martin PM; Naval Aircraft Factory PN-6; Naval Aircraft Factory PN-7; Naval Aircraft Factory PN-8; Naval Aircraft Factory PN-9; Naval Aircraft Factory PN-10; Naval Aircraft Factory PN-12; PN-9; Keystone PK-1; Douglas PD-1; Naval Aircraft Factory PN-11; Martin PM-1; Martin PM-2; 1925 Hawaiian sea plane flight; 1925 Hawaiian sea plane rescue; Hawaiian sea plane rescue of 1925; Naval Aircraft Factory PN-5; Naval Aircraft Factory XP4N; Martin PM-1B; Naval Aircraft Factory XP4N-2; Naval Aircraft Factory XP4N-1; Naval Aircraft Factory XP2N
The Naval Aircraft Factory PN was a series of open cockpit 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 and Martin.