On display in the Research & Development Gallery at NMUSAF. The gyrocopter was an experimental concept to allow flyers downed over Vietnam to use one of these to escape on the ground to a safer area. It was to be stowed in the aircraft and integrated with the aircraft ejection seat. A 90 hp McCullough 4318G four-cylinder horizontally-opposed air-cooled engine powered the X-25A, which would give the pilot limited fly-away capability. First flown on 05 June 1968, it went to the museum in 1969.

On display in the Presidential Gallery at the National Museum of the U.S. Air Force. This short body T-39A Sabreliner with two triangular windows is one of ten Presidential aircraft in the gallery. Retrofitted to a VIP configuration, it was used by former President Lyndon B. Johnson from 1968 to 1973 to travel to his ranch. Later, it flew as an avionics and communication test bed. It went to the museum in October 1984. One can see the air brake extended behind the nose wheel.

On display in the Cold War Gallery at NMUSAF. The swept-wing F-84F Thunderstreak was completely different to the straight-wing F-84 Thunderjet. It was powered by a Wright J65-W-3 engine rather than the Thunderjet's Allison J35. The Thunderstreak equipped USAFE squadrons and a large number were supplied to NATO countries under the Mutual Defense Assistance Program during the Cold War. It could deliver a nuclear bomb using LABS. This aircraft served in Europe and the Ohio ANG before being flown to the museum in 1970.

On display in the Research and Development Gallery at the National Museum of the U.S. Air Force. Dwarfing the SR-71, this exotic Valkyrie was intended to be a Mach 3 nuclear bomber. A sharp-edged splitter plate of the wedge-fronted intake reduced airflow to Mach 1.3, the design helping the XB-70 to surf on its shockwave. The wingtips folded downward on the AV-1 at 25 and 65 deg. at supersonic speeds to add to stability, also adding to lift. It had a retractable visor, delta canards and all-moving vertical stabilizers. Power was from six YJ93-GE-3 turbojets using JP-6 fuel.

Since December 1959 on display at the Lakeview Park.

On display in the Research and Development Gallery at the National Museum of the U.S. Air Force. The Air Force Research Laboratory (AFRL) produced a Pulsed Detonation Engine (PDE) in the 2000s using off-the-shelf automotive components. Shockwaves from controlled detonations of the fuel-air mixture provided a peak thrust of about 200 lb at around 125 decibels through four tubes at the back. After AFRL's five-year joint effort with Innovative Scientific Solutions Inc. (ISSI), Pete Siebold flew the first manned PDE flight in this modified Rutan Long-EZ "Borealis" on 31 Jan 08 at Mojave.

On display in the Research & Development Gallery at the National Museum of the U.S. Air Force. This was the world's first VSTOL tilt-rotor aircraft, powered by a single P&W R-985 Wasp. It was the result of a joint initiative in 1951 between the US Army and USAF. Two were built, and the first hover tests began in 1955. Take off to horizontal flight and back was achieved on 18 Dec 58. It never went into production, but paved the way later for the CV-22 Osprey. The first XV-3 was written off, and this is the only surviving example.

This restored Spad is the latest to be displayed at NMUSAF. An ex-USN Skyraider, BuNo. 134600 flew in combat with VNAF's 514th and 520th FS. "The Proud American" was flown by Lt Col W. Jones on his MoH mission in 1968. It was flown on 1/2nd June 1972 by Capt R. Smith, awarded the AFC for the farthest rescue of Oyster 01 Bravo, WSO Capt. R. Locher who ejected from his F-4D over N. Vietnam. It was the last USAF A-1 to be lost in combat in SE Asia in Sept. 1972. Call sign "Sandy" A-1s are remembered for SAR missions.

19 April 1945: TOS USAAF and assigned to the 393rd Composite Squadron/509th Composite Group, Wendover Army Air Field, UT. It was converted to "Silverplate" Victor number 77. 9 August 1945: Dropped the "Fat Man" atomic bomb on Nagasaki, Japan. 11 September 1946: Davis-Monthan for storage. 26 September 1961: Flew to Patterson Field, Wright-Patterson AFB, OH, for the Air Force Museum. 17 October 1970: Towed to the new Museum facility at Wright Field.

The Bell X-5 did research that led to more modern swing wing aircraft like the F-14 and F-111. Inspired by the WWII Messerschmitt P.1011 design, the German fighter's wing sweep was only adjustable on the ground and the Bell design was adjustable in flight. This last remaining X-5 was the first of two built and is displayed at the National Museum of the United States Air Force. Pictured in an annex hangar, it has since moved to the Museum's new display hangar suspended in the Research & Development section.

The DH-89 at the National Museum of the United States Air Force was built in 1944 and carried RAF serial NR695. It was sold to the government of India in 1945, then sold again to a private concern in 1946. Eventually, it came to the United States where it was modified to the civilian Dragon Rapide passenger configuration. The classic aircraft was obtained by the museum and flown here in November 1989. It is painted to represent one of the six Dominies flown by the USAAF during World War II.

1943: TOS USAAF as a B-25D. Later converted to F-10 photo recon aircraft; assigned to the 6th Air Force in South America. 1948: Redesignated RB-25D. By 1952: 3425th Instruction Squadron/3415th Technical Training Group, Lowry AFB. 3/52: Assigned to Davis-Monthan AFB, AZ, for storage. 30 Dec '57: USAF requested to have the plane modified to resemble Jimmy Doolittle's plane flown on the Tokyo raid in April 1942. 2/58: Ferried to North American Aviation, Inglewood, CA, for conversion. 4/58: Flew to Las Vegas, NV for the Doolittle reunion before continuing to the USAFM, Patterson Field, OH.

1943: TOS USAAF as a B-25D. Later converted to F-10 photo recon aircraft; assigned to the 6th Air Force in South America. 1948: Redesignated RB-25D. By 1952: 3425th Instruction Squadron/3415th Technical Training Group, Lowry AFB. 3/52: Assigned to Davis-Monthan AFB, AZ, for storage. 30 Dec '57: USAF requested to have the plane modified to resemble Jimmy Doolittle's plane flown on the Tokyo raid in April 1942. 2/58: Ferried to North American Aviation, Inglewood, CA, for conversion. 4/58: Flew to Las Vegas, NV for the Doolittle reunion before continuing to the USAFM, Patterson Field, OH.

1943: TOS USAAF as a B-25D. Later converted to F-10 photo recon aircraft; assigned to the 6th Air Force in South America. 1948: Redesignated RB-25D. By 1952: 3425th Instruction Squadron/3415th Technical Training Group, Lowry AFB. 3/52: Assigned to Davis-Monthan AFB, AZ, for storage. 30 Dec '57: USAF requested to have the plane modified to resemble Jimmy Doolittle's plane flown on the Tokyo raid in April 1942. 2/58: Ferried to North American Aviation, Inglewood, CA, for conversion. 4/58: Flew to Las Vegas, NV for the Doolittle reunion before continuing to the USAFM, Patterson Field, OH.

5 Aug '43: TOS USAAF. 22 Aug: Departed Tucson, AZ, Modification Center and began flight to Egypt, arriving at Deversoir Field, Egypt on 7 September. After combat modifications it was delivered to the 512th Bomb Squadron/376th Bomb Group, Benghazi, Libya. 24 Sep: Squadron moved to Enfidaville, Tunisia. 17 Nov: Squadron moved to San Pancrazio, Italy. Flew a total of 56 missions, the last on being on 23 Feb '44. April/44: Due to obsolescence, the plane returned to the USA. September/44: Began storage tour, several bases. 12 May '59: Flown to the Air Force Museum at Patterson Field, Fairborn, OH.

5 Aug '43: TOS USAAF. 22 Aug: Departed Tucson, AZ, Modification Center and began flight to Egypt, arriving at Deversoir Field, Egypt on 7 September. After combat modifications it was delivered to the 512th Bomb Squadron/376th Bomb Group, Benghazi, Libya. 24 Sep: Squadron moved to Enfidaville, Tunisia. 17 Nov: Squadron moved to San Pancrazio, Italy. Flew a total of 56 missions, the last on being on 23 Feb '44. April/44: Due to obsolescence, the plane returned to the USA. September/44: Began storage tour, several bases. 12 May '59: Flown to the Air Force Museum at Patterson Field, Fairborn, OH.

5 Aug '43: TOS USAAF. 22 Aug: Departed Tucson, AZ, Modification Center and began flight to Egypt, arriving at Deversoir Field, Egypt on 7 September. After combat modifications it was delivered to the 512th Bomb Squadron/376th Bomb Group, Benghazi, Libya. 24 Sep: Squadron moved to Enfidaville, Tunisia. 17 Nov: Squadron moved to San Pancrazio, Italy. Flew a total of 56 missions, the last on being on 23 Feb '44. 4/44: Due to obsolescence, the plane returned to the USA. 9/44: Began storage tour, several bases. 12 May '59: Flown to the Air Force Museum at Patterson Field, Fairborn, OH.

Ex N2566B, USAF 48-626, but painted as 48-622. This was the military version of the Northrop N-23 Pioneer. Twenty were built but were found to be underpowered, and were soon used as ground instruction airframes. They were sold off in 1955 to civil users, and this one went to Mexico as XA-LOU before going to the museum in the early 1990s.

Ex T.2-244. Donated to the museum by the Spanish government in 1971. Now in storage.