Flight Test Files

Flight Test Files is a series that looks closely at the aircraft flown by NACA and later NASA at the High-Speed Flight Station in Edwards, California, known today as the Armstrong Flight Research Center. These were not always purpose-built research airplanes. Many were operational fighters, bombers, or transports that were brought to the desert to answer specific technical questions. Each article focuses on what problem NACA/NASA engineers were trying to solve, why a particular aircraft was chosen, what the flights revealed, and how it changed the future of aviation.

AirCorps Restorations
Alan Armstrong 729
Gosshawk 729
Gary Velasco 729

Flight Test Files: Grumman X-29 – Harnessing the Strength of Aero Tailored Composites

NASA’s X-29 tested forward-swept wings and digital fly-by-wire control, advancing unstable aircraft design and high-angle…

Kapil Kajal

Flight Test Files: The T-34C Mentor – The Rugged Bridge to the Jet Age

NASA’s T-34C Mentor helped test detect-and-avoid systems for drones, supporting safe integration of unmanned aircraft…

Kapil Kajal

Flight Test Files: The X-2 Starbuster – A Pioneer of Aerodynamic Heating

The Bell X-2 Starbuster pushed flight beyond Mach 3 and 126,000 feet, advancing research on…

Kapil Kajal

Flight Test Files: F-4 Phantom II – Exploring the Limits of Aerodynamics and Sonic Boom

How NASA used the F-4 Phantom II for unusual research, from biomedical monitoring flights and…

Kapil Kajal

Flight Test Files: MD-11 – Pioneering Safe Landings with Propulsion Controlled Aircraft

How NASA tested Propulsion Controlled Aircraft (PCA) on an F-15 and MD-11, proving an airplane…

Kapil Kajal

Flight Test Files: Lockheed YF-12 – The Mach 3 Interceptor That Almost Was

How the YF-12 set Mach 3 records and powered NASA research that shaped the SR-71…

Kapil Kajal

Flight Test Files F-15B TN 837 – Testing the Future of Thrust Vectoring

How NASA’s F-15 ACTIVE program tested thrust vectoring and adaptive controls to improve performance of…

Kapil Kajal

Flight Test Files Northrop T-38 Talon – The Chase Plane That Saw It All

How the T-38 Talon became America’s first supersonic trainer, shaping USAF pilot training and NASA…

Kapil Kajal

Flight Test Files: Douglas X-3 Stiletto – Taming the Inertia of the Needle Jet

The Douglas X-3 Stiletto fell short of Mach 2 but revealed roll coupling risks and…

Kapil Kajal

Flight Test Files: Northrop HL-10 – Solving the Aerodynamics of Reentry

How NASA’s HL-10 lifting body proved wingless reentry and runway landings were possible, shaping future…

Kapil Kajal

Flight Test Files: Schweizer SGS 1-36 Sailplane – Evaluating the Leap to T-Tail Aerodynamics

How NASA used a modified Schweizer SGS 1-36 sailplane in the 1980s to study deep-stall…

Kapil Kajal

Flight Test Files: XB-70 Valkyrie – Riding the Shockwave at Mach 3

How NASA used the XB-70 Valkyrie bomber to advance supersonic transport research, study sonic booms…

Kapil Kajal

Flight Test Files: Northrop X-4 Bantam-Navigating the Limits of the Tailless Wing

How the Northrop X-4 Bantam tested semi-tailless flight near Mach 1 and revealed stability limits…

Kapil Kajal

Flight Test Files: Douglas F5D-1 Skylancer – Mastering the High-Speed Sink Rate

The Douglas F5D-1 Skylancer evolved from the F4D Skyray into a Mach 1.5 interceptor before…

Kapil Kajal