The last of four N-1s for the USN and fitted with the large calibre Davis gun that gave it its alternative name of Davis Gun Carrier. The N-1 was rejected by the Navy. Photo from: National Archives at College Park, Maryland

The date of this photograph makes it the prototype N-1 which apparently crashed before getting airborne. Although it was rebuilt, it was the second N-1 which made the maiden flight. Also known as the Davis Gun Carrier on account of the heavy calibre intended to be fitted to. Project cancelled after four aircraft, two of which were written off. Photo from: National Archives at College Park, Maryland

American version of the British Felixstowe F5L which in turn was an improved development of the American Curtiss H-12. F5Ls were built in the US by the Naval Aircraft Factory and Curtiss. Photo from: National Archives at College Park, Maryland

The captured German cruiser Prinz Eugen sailed to the USA in 1946 with two Ar 196s on board. The ship's catapult was installed at Mustin Field and some test launches were carried out with spurious markings painted on this aircraft. These were simply copied from an old publicity photo of Ar 196A-4 GA-DX, c/n 0124. This airframe, really an Ar 196A-5 built by Fokker in Amsterdam, is currently in National Air and Space Museum custody for possible restoration. The other Ar 196 from Prinz Eugen is now back in Germany, at Nordholz.

The taildragger Airabonita was a naval carrier version of the P-39 Airacobra fighter. First flown in 1940, only this example was built. Photo from: US Navy

The sole Boeing PB first flew in 1925 and was intended as a long range naval patrol bomber able to fly non-stop from California to Hawaii. It did not go into US Navy operational service. In 1928 it was modified as the XPB-2 and fitted with two P & W R-1860 of 800 hp in 'push-pull' configuration. From Boeing 60 years ago.