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For example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the leading edge with a maximum thickness of 12% of the chord. The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. The 15 indicates that the airfoil has a 15% thickness to chord length ratio: it is 15% as thick as it is long.
NACA experience provided a model for World War II research, the postwar government laboratories, and NACA's successor, the National Aeronautics and Space Administration (NASA). NACA also participated in development of the first aircraft to fly to the "edge of space", North American's X-15. NACA airfoils are still used on modern aircraft.
A Gurney flap shown on the underside of a Newman airfoil [1]. The Gurney flap (or wickerbill) is a small tab projecting from the trailing edge of a wing. Typically it is set at a right angle to the pressure-side surface of the airfoil [2] and projects 1% to 2% of the wing chord. [3]
Drag and lift coefficients for the NACA 63 3 618 airfoil. Full curves are lift, dashed drag; red curves have R e = 3·10 6, blue 9·10 6. Coefficients of lift and drag against angle of attack. Curve showing induced drag, parasitic drag and total drag as a function of airspeed. Drag curve for the NACA 63 3 618 airfoil, colour-coded as opposite plot.
The airfoil employed is a NACA 2412, the same as used on the later Cessna 150, 172 and 182. [ 3 ] [ 8 ] The 190/195 fuselage is large in comparison to other Cessna models because the 42" diameter radial engine had to be accommodated in the nose.
The idea that the NACA cowling produced thrust through the Meredith effect [6] is fallacious—although in theory the expansion of the air as it was heated by the engine could create some thrust by exiting at high speed, in practice this required a cowling designed and shaped to achieve the high-speed exit of air required (which the NACA ...
The Ferrari F40 sports car has "NACA style" side and hood scoops.. It is especially favored in racing car design. [4] [5] Sports cars featuring prominent NACA ducts include the Ferrari F40, the Lamborghini Countach, the 1996–2002 Dodge Viper, the 1971–1973 Ford Mustang, the 1973 Pontiac GTO, the 1979 Porsche 924 Turbo, the Maserati Biturbo, the Nissan S130, and the Porsche 911 GT2.
Data from Jane's All the World's Aircraft 2000–01 General characteristics Crew: 1 Capacity: 1 Length: 6.2 m (20 ft 4 in) Wingspan: 9.45 m (31 ft 0 in) Height: 2.34 m (7 ft 8 in) Wing area: 12.5 m 2 (135 sq ft) Airfoil: NACA 2412 Empty weight: 265 kg (584 lb) standard 251 kg (553 lb) for competition Max takeoff weight: 540 kg (1,190 lb) Fuel capacity: 50 L (13 US gal; 11 imp gal) with ...