Agan-agan maybe ada yg udah never know, because this is not new news. Nasa makes airplane with a unique concept that is a side wing of the NASA named AD-1. NASA AD-1 is a plane and at the same time testing programs conducted between 1979 and 1982 at NASA Dryden Flight Research Center, Edwards California, which successfully demonstrated an aircraft wing that can be turned sideways from zero to 60 degrees during the flight.
Unique sloping wing demonstrated on a small research aircraft jet engine research subsonik called AD-1 (Ames Dryden -1). The aircraft was flown 79 times during the research program, which evaluated the basic pivot wing concept and gathered information about the handling qualities and aerodynamics at various speeds and degrees of pivot.
The first person known to design the wing is tilted Blohm & Voss, which was proposed by Richard Vogt in 1942. Sloping wing concept was later popularized by Robert T. Jones, a flight engineer at NASA's Ames Research Center, Moffett Field, California.
Analysis and study copies of Jones winds that began at Ames showed that the size of aircraft carriers 'wings crooked', which fly at speeds up to Mach 1.4 (1.4 times the speed of sound), would be far better than the aircraft aerodynamic system with a conventional wing . At high speeds, both subsonik or supersonic, the wing will be rotated through 60 degrees closer to the fuselage to get the maximum speed of reply. Studies show these angles would decrease aerodynamic, allowing increased speed and distance further by spending the same fuel.
At low speeds, during takeoffs and landings, the wing would be perpendicular to the fuselage like a conventional wing to maximize lift and control. When the plane had started sooner, the wings will rotate with increasing slope angle, thus reducing the barriers and reduce fuel consumption. The wings can be swept in only one direction, with the right wingtip moving forward.
Who fly the aircraft on its first flight on December 21, 1979, is a NASA research pilot Thomas C. McMurtry, who is also a pilot on his last flight on August 7, 1982. Other famous test pilot involved in this project was Pete Knight.
Pilot
The size of AD-1 is 38.8 feet (11.8 m) long and has a wingspan 32.3 feet (9.8 m). This aircraft is made of plastic reinforced with fiberglass, which are separated by ditengah2nya rigid foam core. This aircraft has a gross weight of 2145 pounds, and the empty weight of 1450 pounds
Research program to make the concept of side wings are typical of any NASA project risk. Basic purpose of the AD-1 project is to examine the characteristics of low speed side of the wing configuration.
AD-1 made its first flight in late 1979. The wing rotates gradually over 18 months until the full 60-degree angle was reached in mid-1981. then the plane was flown back to the year after that, to obtain data from a variety of speeds and flight kemirinagn wings until finally in August 1982.
After the flight research is conducted, Jones thought his side wing as a proper concept for transport across the ocean or a large continent tarnsportasi. Special despite the low speed, with little research costs, but the show effects on air and keelastisan merger bailng2 the lack of control over the weight on the slope of the reply above the wing 45 degrees.
Thus, although AD-1 structure allowed completion of the program for technical purposes, tp still required further study of the wing bias in case transonik for assessing the effects of compressibility, evaluate a more representative structure, and analyze flight performance at transonic speeds.
After completing the test program, AD-1 was retired and now are on exhibition at the Hiller Aviation Museum in San Carlos, California.
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