Technicians check instrumentation and systems on NASA 808, a PA-30 aircraft, prior to a research flight. The aircraft was used as the testbed in development of control systems for remotely piloted vehicles that were "flown" from the ground. The concept led to highly successful programs such as the HiMAT and the subscale F-15 remotely piloted vehicles. Over the years, NASA 808 has also been used for spin and stall research related to general aviation aircraft and also research to alleviate wake vortices behind large jetliners. This 1980 photograph taken inside a hangar shows technicians measuring moment of inertia.

Dryden Flight Research Center's Piper PA-30 Twin Commanche, which helped validate the RPRV concept, descends to a remotely controlled landing on Rogers Dry Lake, unassisted by the onboard pilot. A Piper PA-30 Twin Commanche, known as NASA 808, was used at the NASA Dryden Flight Research Center as a rugged workhorse in a variety of research projects associated with both general aviation and military projects. In the early 1970s, the PA-30, serial number 301498, was used to test a flight technique used to fly Remotely Piloted Research Vehicles (RPRV's). The technique was first tested with the cockpit windows of the light aircraft blacked out while the pilot flew the aircraft utilizing a television monitor which gave him a "pilot's eye" view ahead of the aircraft. Later pilots flew the aircraft from a ground cockpit, a procedure used with all RPRV's. TV and two-way telemetry allow the pilot to be in constant control of the aircraft. The apparatus mounted over the cockpit is a special fish eye lens camera, used to obtain images that are transmitted to the ground based cockpit. This project paved the way for sophisticated, highly successful research programs involving high risk spin, stall, and flight control conditions, such as the HiMAT and the subscale F-15 remotely piloted vehicles. Over the years, NASA 808 has also been used for spin and stall research related to general aviation aircraft and also research to alleviate wake vortices behind large jetliners.

A Lockheed F-94B Starfire on the hangar apron at the National Aeronautics and Space Administration (NASA) Lewis Research Center in Cleveland, Ohio. The Air Force contracted Lockheed in November 1948 to create the new F-94s fighters. The first test flight occurred only months later in April 1949. This quick turnaround was due to the fact that the F-94 was based largely on the TF-80 fighter and constructed with parts from the P-80, including its two General Electric I-40 turbojet engines. The F-94Bs entered the Korean War in late 1951, but were initially prevented from flying over enemy territory due to fear that their fire control system would be copied by the enemy if an F-94B went down. The Starfire went on to perform scores of missions escorting B-29 and B-26 bombers deep into enemy territory and acting as interceptors against enemy fighters. In mid-1954 the F-94s were retired from active military service. Lewis acquired the F-94B Starfire in April 1956. At the time, the aircraft industry was preparing for the first use of jet engines for commercial aviation. The amount of noise generated by the engines was a major obstacle. Lewis undertook an extensive program to understand the causes of the noise and develop methods for reducing it. This program included the study of aerodynamic sound at high speed and altitude using the F-94B.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASAs first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA’s first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center’s environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

A cruise motor controller for the X-57 Maxwell, NASA’s first all-electric X-plane, undergoes vibration testing at NASA Armstrong Flight Research Center’s environmental lab. The cruise motor controller is exposed to two levels of vibration on three different axes, helping NASA to examine the integrity of the controller for flight conditions. The cruise motor controller will be a critical component for providing power to X-57’s motors when the aircraft takes to the skies in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

A cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane, undergoes vibration testing at NASA Armstrong Flight Research Center's environmental lab. The cruise motor controller is exposed to two levels of vibration on three different axes, helping NASA to examine the integrity of the controller for flight conditions. The cruise motor controller will be a critical component for providing power to X-57's motors when the aircraft takes to the skies in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA’s Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA’s all-electric X-57 Maxwell, for vibration testing at Armstrong’s environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project’s first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA’s first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

NASA’s all-electric X-57 Maxwell prepares for ground vibration testing, or GVT, at NASA’s Armstrong Flight Research Center in California. Done in parallel with cruise motor controller testing, the GVT tested the vehicle at various vibration levels, helping engineers to examine and validate the integrity of the vehicle for flight conditions. A goal of X-57 is to help the Federal Aviation Administration set certification standards for emerging electric aircraft markets.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA’s first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center’s environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers from NASA’s Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA’s all-electric X-57 Maxwell, for vibration testing at Armstrong’s environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project’s first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA’s first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA’s Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA’s all-electric X-57 Maxwell, for vibration testing at Armstrong’s environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project’s first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA’s first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

A cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane, undergoes vibration testing at NASA Armstrong Flight Research Center's environmental lab. The cruise motor controller is exposed to two levels of vibration on three different axes, helping NASA to examine the integrity of the controller for flight conditions. The cruise motor controller will be a critical component for providing power to X-57's motors when the aircraft takes to the skies in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA’s first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center’s environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA’s first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center’s environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.

Engineers from NASA’s Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA’s all-electric X-57 Maxwell, for vibration testing at Armstrong’s environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project’s first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA’s first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers from NASA's Armstrong Flight Research Center and Empirical Systems Aerospace prepare a cruise motor controller, planned to be used on NASA's all-electric X-57 Maxwell, for vibration testing at Armstrong's environmental lab. Testing the cruise motor controller at various vibration levels, based on baseline flight testing in the project's first phase, helps ensure that the hardware will withstand similar vibration in flight conditions. X-57, NASA's first all-electric experimental aircraft, or X-plane, will fly in its first all-electric configuration in 2020.

Engineers monitor data during vibration testing of a cruise motor controller for the X-57 Maxwell, NASA's first all-electric X-plane. Attached to a table at NASA Armstrong Flight Research Center's environmental lab, the cruise motor controller is exposed to specific levels of vibration, allowing NASA to examine the structural integrity of the hardware. Engineers, meanwhile, monitored data, including waveforms of electrical current, and recorded readings.