German CL class aircraft were light two-seaters used as escort fighters and ground attack aircraft. Developed from the Halberstadt CL.II, the nimble CL.IV was manoeuvrable and easy to fly. It saw action in the final battles of WWI in 1918.

The Boeing 15 fighter served with the US Army as the PW-9 and with the Navy as the FB. The FB-5 model was the USN's first true carrier fighter. I understand it used 'grapple hooks' on an axle between the main wheels that this survivor doesn't have. The tail skid looks intriguing. Also the navigation light on the wing tip seems enormous, but this is mostly a wide angle effect.

This is a composite of several Nie 28 fighters. It is painted as the aircraft of Lt James Meissner of the 94th Aero Squadron 'Hat-in-Ring', based near Toul, France in May 1918, but serial 6144 is not applied. This aircraft was formerly registered as N4123A but that was cancelled in Jul-2012.

Built in 1929 as the Curtiss Long-Distance Hawk I demonstrator, a variant of the P-6E fighter, and registered NR636E. Rebuilt after a crash as the Hawk IA and delivered to aerobatic pilot Al Williams as NR982V in August 1930. Named Gulfhawk and painted orange when Williams was contracted by Gulf Oil in 1933. Replaced by the Grumman G-22 Gulfhawk II in 1936. Restored from 1958-62 and subsequently flown by Hollywood stunt pilot Frank Tallman. Donated to the NASM in 1969.

SPAD was better known for its single-seat fighters, and the two-seat S.XI/S.XVI served without distinction as a reconnaissance aircraft. Six S.XVIs were supplied to the Americans, and this particular one was flown by Lt Col Billy Mitchell during the Battle of Château-Thierry in July 1918.

An irresistible motive at Udvar-Hazy.

First flown in 1947 the S-52 was not a huge success - only 97 examples were built.

The only surviving example of the world's first jet bomber. The aircraft carries Walter rocket-assisted take-off bottles on the outer wings.

This Peashooter was obtained from Guatemala where it apparently served until 1954.

The M6A1 Seiran was designed to emerge from large I-400 class submarines to bomb the locks in the Panama Canal. It never happened. This one received US Navy tail number 47 after capture. Note the Nakajima Kikka jet fighter, inspired by the Me 262, in the background.