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Randy Malmstrom highlights the remarkable history of Douglas F5D-1 Skylancer BuNo 139208, an experimental Navy fighter that found new purpose in cutting edge research after its production was canceled. Used by NACA and NASA to test radar systems, flight instruments and even wing concepts that shaped the Concorde, the aircraft became one of the most valuable aerodynamic research platforms of its era. After decades in private hands, the unrestored Skylancer now resides at the Evergreen Aviation and Space Museum, where efforts continue to preserve this rare survivor of Cold War innovation.
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
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By Randy Malmstrom
Douglas F5D-1 Skylancer, BuNo. 139208 (NASA 708). My photos of this unrestored aircraft at Evergreen Aviation and Space Museum in McMinnville, Oregon. It is one of a very short list of survivors.
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Editor’s notes: This aircraft was one of only four Douglas F5D Skylancers built. Developed from the Douglas F4D Skyray, the F5D Skylancer began life as the F4D-2N, an all-weather adaptation of the Skyray that was also fitted with the Pratt & Whitney J57 afterburning turbojet engine for better power output than the Skyray’s original engine, the Westinghouse J40. F5D BuNo 193208 was the first of its kind built, and made the type’s maiden flight on April 21, 1956, at Edwards Air Force Base, California, with Douglas aircraft test pilot Robert O. Rahn at the controls. Though the Skylancer had good performance, the US Navy later canceled its order with Douglas Aircraft to produce the aircraft, citing similar performance found in the Vought F8U Crusader, along with concerns of Douglas becoming a monopoly for US carrier-based aircraft. Only four Douglas F5Ds were ever built (BuNo 139208-139209, 142349-142350).
Douglas F5D-1 Skylancer BuNo 139208 during a test flight. (San Diego Air and Space Museum Archives)
Engine intake for Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Main landing gear leg for Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Cockpit canopy of Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Nose gear on Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
Cockpit canopy of Douglas F5D Skylancer at the Evergreen Aviation and Space Musuem. (Randy Malmstrom)
After being turned down by the Navy, the four Skylancers were used by the National Advisory Committee for Aeronautics (NACA; later reformed as NASA) for flight testing. F5D 139208 was assigned to NACA Ames Aeronautical Laboratory, NAS Moffett Field, CA, later the NASA Ames Research Center, from August 20, 1957, to January 16, 1961, as NACA 212 (later NASA 212). There, it was used to test airborne radar systems, new flight instruments, and armament. The aircraft was later reserialized as NASA 708 and was also used as a testbed for the American Supersonic Transport (SST) program, and was fitted with an ogival wing platform to test its efficiency at low speeds. This was the wing design adapted for the Concorde.
Douglas F5D Skylancer NASA 212 (USN BuNo 139208) modified with ogee wing planform designed for Mach 2 flight. Shown is the effect of vortex flow on wing tuft alignment in low-speed, high-angle-of-attack flight, October 1, 1964. (NASA photo)Douglas F5D Skylancer at the Evergreen Aviation and Space Museum. (Randy Malmstrom)
In 1968, F5D BuNo 139208/NASA 708 was decommissioned and later acquired by local businessman and aircraft collector Merle Maine of Ontario, Oregon. When Maine died in 2013, his collection was auctioned, as covered in an old article on this site HERE. Since the Evergreen Air and Space Museum in McMinnville, Oregon, acquired the Skylancer, it has been under restoration while on display at the museum.
About the author
Randy Malmstrom grew up in a family steeped in aviation culture. His father, Bob, was still a cadet in training with the USAAF at the end of WWII, but did serve in Germany during the U.S. occupation in the immediate post-war period, where he had the opportunity to fly in a wide variety of types that flew in WWII. After returning to the States, Bob became a multi-engine aircraft sales manager and, as such, flew a wide variety of aircraft; Randy frequently accompanied him on these flights. Furthermore, Randy’s cousin, Einar Axel Malmstrom, flew P-47 Thunderbolts with the 356th FG from RAF Martlesham Heath. He was commanding this unit at the time he was shot down over France on April 24th, 1944, and spent the rest of the war as a prisoner of war. Following his repatriation at war’s end, Einar continued his military service, attaining the rank of Colonel. He was serving as Deputy Wing Commander of the 407th Strategic Fighter Wing at Great Falls AFB, MT, at the time of his death in a T-33 training accident on August 21, 1954. The base was renamed in his honor in October 1955 and continues to serve in the present USAF as home to the 341st Missile Wing. Randy’s innate interest in history in general, and aviation history in particular, plus his educational background and passion for WWII warbirds, led him down his current path of capturing detailed aircraft walk-around photos and in-depth airframe histories, recording a precise description of a particular aircraft in all aspects.
Raised in Fullerton, California, Adam has earned a Bachelor's degree in History and is now pursuing a Master's in the same field. Fascinated by aviation history from a young age, he has visited numerous air museums across the United States, including the National Air and Space Museum and the San Diego Air and Space Museum. He volunteers at the Planes of Fame Air Museum in Chino as a docent and researcher, gaining hands-on experience with aircraft maintenance. Known for his encyclopedic knowledge of aviation history, he is particularly interested in the stories of individual aircraft and their postwar journeys. Active in online aviation communities, he shares his work widely and seeks further opportunities in the field.