- low-drag airfoil
- аэродинамическая поверхность малого сопротивления
Englsh-Russian aviation and space dictionary. - M.: Military publishing house USSR Ministry of Defence. edited by M. Murashkevich. 1974.
low-drag airfoil
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airfoil — /air foyl /, n. Aeron. any surface, as a wing, aileron, or stabilizer, designed to aid in lifting or controlling an aircraft by making use of the air currents through which it moves. [1920 25; AIR1 + FOIL2] * * * Shaped surface, such as an… … Universalium
Drag coefficient — In fluid dynamics, the drag coefficient (commonly denoted as: cd, cx or cw) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment such as air or water. It is used in the drag equation,… … Wikipedia
Airfoil — An airfoil (in American English) or aerofoil (in British English) is the shape of a wing or blade (of a propeller, rotor or turbine) or sail as seen in cross section. An airfoil shaped body moved through a fluid produces a force perpendicular to… … Wikipedia
Drag divergence Mach number — The drag divergence Mach number (not to be confused with critical Mach number) is the Mach number at which the aerodynamic drag on an airfoil or airframe begins to increase rapidly as the Mach number continues to increase[1]. This increase can… … Wikipedia
NACA airfoil — Profile geometry – 1: Zero lift line; 2: Leading edge; 3: Nose circle; 4: Camber; 5: Max. thickness; 6: Upper surface; 7: Trailing edge; 8: Camber mean line; 9: Lower surface … Wikipedia
NACA (National Advisory Committee for Aeronautics) airfoil — A method of indicating characteristics of an airfoil. This can be done by describing the airfoil using 4, 5, 6, 7, or 8 digits. In a NACA 4 digit airfoil, the first digit expresses the camber in the percentage of chord, the second digit gives the … Aviation dictionary
Lift-induced drag — In aerodynamics, lift induced drag, induced drag, vortex drag, or sometimes drag due to lift, is a drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting… … Wikipedia
Wave drag — is an aerodynamics term that refers to a sudden and very powerful form of drag that appears on aircraft and blade tips moving at high subsonic and supersonic speeds. Overview Wave drag is caused by the formation of shock waves around the aircraft … Wikipedia
Propeller — A propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a mass such as water or air, by rotating two or more twisted… … Wikipedia
Cessna 177 — Infobox Aircraft name=Model 177 Cardinal caption= type=Light utility aircraft manufacturer=Cessna Aircraft Company designer= first flight=1967 introduced=1968 primary user= more users= produced=1968 1978 number built=4,295 unit cost=USD$27,250… … Wikipedia
military aircraft — Introduction any type of aircraft that has been adapted for military use. Aircraft have been a fundamental part of military power since the mid 20th century. Generally speaking, all military aircraft fall into one of the following… … Universalium
