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TAF VIII-2, four-seater Tandem Airfoil Flairboat Typ Jörg II, built in 1983. Following the F&E and test period, Dipl. Ing. Günther Jörg was awarded with the "Phillip Morris Scientific Award" for the Transportation System for the future. Another TAF VIII-2, built in 1994 was given to a Japanese private citizen.
Ekranoplan A-90 Orlyonok. A ground-effect vehicle (GEV), also called a wing-in-ground-effect (WIGE or WIG), ground-effect craft/machine (GEM), wingship, flarecraft, surface effect vehicle or ekranoplan (Russian: экранопла́н – "screenglider"), is a vehicle that is able to move over the surface by gaining support from the reactions of the air against the surface of the earth or water.
The Armstrong-Whitworth Chief Test Pilot Eric George Franklin carried out the test flights. [2] The prone pilot's emergency escape involved a complex procedure which included jettisoning the rudder pedals, crawling backward to an escape hatch and retracting the nose wheel. This system was never used. [1]
His book, The Elements of Aerofoil and Airscrew Theory was the single most important instrument for spreading airfoil and wing theory around the English speaking world. Glauert independently developed Prandtl-Glauert method from the then-existing aerodynamic theory and published his results in The Proceedings of the Royal Society in 1928.
The Kline–Fogleman airfoil or KF airfoil is a simple airfoil design with single or multiple steps along the length of the wing. The purpose of the step, it is claimed, is to allow some of the displaced air to fall into a pocket behind the step and become part of the airfoil shape as a trapped vortex or vortex attachment.
[1] [7] (The first known oblique wing design was the Blohm & Voss P.202, proposed by Richard Vogt in 1942. [8]) Jones's wind tunnel studies indicated that such a wing design on a supersonic transport might achieve twice the fuel economy of an aircraft with conventional wings. The concept was flight tested successfully on the NASA AD-1. This ...
XFOIL is an interactive program for the design and analysis of subsonic isolated airfoils.Given the coordinates specifying the shape of a 2D airfoil, Reynolds and Mach numbers, XFOIL can calculate the pressure distribution on the airfoil and hence lift and drag characteristics.
The test is performed by driving a metal cone into the ground by repeated striking it with a 17.6 lb (8 kg) weight dropped from a distance of 2.26 feet (689 mm). The penetration of the cone is measured after each blow and is recorded to provide a continuous measure of the shearing resistance of the soil.