General Dynamics F-16XL

F-16XLF-16 XLF–16XL
The General Dynamics F-16XL is a derivative of the F-16 Fighting Falcon, with a cranked-arrow delta wing.wikipedia
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McDonnell Douglas F-15E Strike Eagle

F-15E Strike EagleF-15EF-15I
It was originally conceived as a technology demonstrator, later entered in the United States Air Force's (USAF) Enhanced Tactical Fighter (ETF) competition but lost to the F-15E Strike Eagle.
General Dynamics submitted the F-16XL, while McDonnell Douglas submitted the F-15E.

Delta wing

deltadelta-wingeddouble delta
The General Dynamics F-16XL is a derivative of the F-16 Fighting Falcon, with a cranked-arrow delta wing.
Examples include the Saab Draken fighter, the prototype General Dynamics F-16XL and the High Speed Civil Transport study.

General Dynamics F-16 Fighting Falcon

F-16F-16 Fighting FalconF-16C Fighting Falcon
The General Dynamics F-16XL is a derivative of the F-16 Fighting Falcon, with a cranked-arrow delta wing.

Enhanced Tactical Fighter

Dual-Role Fighter
It was originally conceived as a technology demonstrator, later entered in the United States Air Force's (USAF) Enhanced Tactical Fighter (ETF) competition but lost to the F-15E Strike Eagle. In March 1981, the USAF announced the Enhanced Tactical Fighter program to procure a replacement for the F-111 Aardvark.
General Dynamics submitted the F-16XL, while McDonnell Douglas submitted the F-15E Strike Eagle.

General Dynamics

General Dynamics CorporationGeneral Dynamics Corp.Saco Defense
In 1977, the F-16XL started out as the F-16 SCAMP (Supersonic Cruise And Maneuver Prototype) at General Dynamics Fort Worth.

General Electric F110

F110GE F110F110-132A
The second aircraft (a two-seater) had its experimental engine replaced with a General Electric F110-129.

Supercruise

Supersonic cruisecruise efficiently at supersonic speedscruising supersonically
It accidentally achieved supercruise, a design goal of the F-16XL that was never attained in ETF testing, when it reached Mach 1.1 at 20,000 ft (6,096 m) on full military power.

United States Air Force

U.S. Air ForceAir ForceUSAF
It was originally conceived as a technology demonstrator, later entered in the United States Air Force's (USAF) Enhanced Tactical Fighter (ETF) competition but lost to the F-15E Strike Eagle.

NASA

National Aeronautics and Space AdministrationNASA Advisory CouncilU.S. space program
Several years after the prototypes were shelved, they were turned over to NASA for additional aeronautical research.

Supersonic transport

SSTsupersonic airlinerhypersonic transport
Under the leadership of Harry Hillaker (father of the original F-16), the original goal of the program was to be a quick project to demonstrate the applicability of supersonic transport technologies to military aircraft.

Langley Research Center

NASA Langley Research CenterLangley Memorial Aeronautical LaboratoryNASA Langley
Working closely with NASA's Langley Research Center, the company invested significant Internal Research and Development (IRAD) funds for wind tunnel testing and that led to the Model 400.

Strake (aeronautics)

strakesstrakeventral strakes
The main wing incorporated forebody strakes to enhance vortex generation for high angle of attack maneuverability, negative stability for improved subsonic lift and reduced supersonic drag.

Angle of attack

angles of attackangle-of-attackCritical angle of attack
The main wing incorporated forebody strakes to enhance vortex generation for high angle of attack maneuverability, negative stability for improved subsonic lift and reduced supersonic drag.

General Dynamics F-111 Aardvark

F-111General Dynamics F-111F-111 Aardvark
In March 1981, the USAF announced the Enhanced Tactical Fighter program to procure a replacement for the F-111 Aardvark.

Air interdiction

interdictionaerial interdictioninterdict
The concept envisioned an aircraft capable of launching deep interdiction missions without requiring additional support in the form of fighter escort or jamming support.

Anti-aircraft warfare

anti-aircraftanti-aircraft gunair defense
Furthermore, engine redundancy can be very useful for an aircraft whose mission involves operating within the reach of anti-aircraft artillery and surface-to-air missiles, in addition to the standard threats of fighter aircraft and interceptors.

Surface-to-air missile

SAMsurface-to-air missilessurface-to-air
Furthermore, engine redundancy can be very useful for an aircraft whose mission involves operating within the reach of anti-aircraft artillery and surface-to-air missiles, in addition to the standard threats of fighter aircraft and interceptors.

Fighter aircraft

fighterfightersjet fighter
Furthermore, engine redundancy can be very useful for an aircraft whose mission involves operating within the reach of anti-aircraft artillery and surface-to-air missiles, in addition to the standard threats of fighter aircraft and interceptors.

Interceptor aircraft

interceptorinterceptorsfighter-interceptor
Furthermore, engine redundancy can be very useful for an aircraft whose mission involves operating within the reach of anti-aircraft artillery and surface-to-air missiles, in addition to the standard threats of fighter aircraft and interceptors.

Lift-to-drag ratio

glide ratiolift to drag ratiolift/drag ratio
These changes resulted in a 25% improvement in maximum lift-to-drag ratio in supersonic flight and 11% in subsonic flight, and a plane that reportedly handled much more smoothly at high speeds and low altitudes.

Armstrong Flight Research Center

Dryden Flight Research CenterNASA DrydenDryden Flight Research Facility
The first aircraft was fitted with an active suction titanium glove encasing the left wing and delivered to the Ames-Dryden Flight Research Facility at Edwards AFB.

Edwards Air Force Base

Edwards AFBMuroc Army Air FieldEdwards
The first aircraft was fitted with an active suction titanium glove encasing the left wing and delivered to the Ames-Dryden Flight Research Facility at Edwards AFB. Both aircraft are currently stored at Edwards AFB.

Turbulence

turbulentturbulent flowatmospheric turbulence
It was intended to suck away turbulent airflow over the wing, restoring laminar flow and reducing drag.

Laminar flow

laminarlaminar-flowlaminar air flow
It was intended to suck away turbulent airflow over the wing, restoring laminar flow and reducing drag.

Drag (physics)

dragaerodynamic dragair resistance
It was intended to suck away turbulent airflow over the wing, restoring laminar flow and reducing drag.