ground effect

ground effect
A condition of improved performance (lift) due to the interference of the surface with the airflow pattern of the rotor system when a helicopter or other VTOL aircraft is operating near the ground.
Note.— Rotor efficiency is increased by ground effect to a height of about one rotor diameter for most helicopters.
Official definition added to PANS-RAC by Amdt 5 (10/11/1994).
эффект земли; влияние земли
Улучшение лётно-технических характеристик (подъёмной силы) за счёт взаимодействия поверхности земли с воздушным потоком, создаваемым системой несущих винтов, когда вертолёт или другое воздушное судно СВВП выполняет полёт вблизи земли.
Примечание. У большинства вертолётов эффективность несущих винтов повышается под воздействием эффекта земли до высоты, соответствующей примерно одному диаметру несущего винта.

International Civil Aviation Vocabulary (English-Russian). 2014.

Смотреть что такое "ground effect" в других словарях:

  • Ground effect — may refer to:* Ground effect in aircraft, mostly related to aerodynamic lift * Ground effect in cars, an effect that creates downforce, primarily in racing cars …   Wikipedia

  • ground effect — i. The change in the aerodynamic reaction on an aircraft caused by the proximity of the ground. An aircraft, helicopter, or any other flying machine flying very near to the ground experiences an increase in lift. This additional lift or… …   Aviation dictionary

  • Ground-Effect — ohne Bodeneffekt mit Bodeneffekt …   Deutsch Wikipedia

  • Ground effect — ohne Bodeneffekt mit Bodeneffekt …   Deutsch Wikipedia

  • ground effect — noun A generic term describing any aerodynamic effects occurring due to a vehicles body or appendages moving in close proximity to the ground …   Wiktionary

  • ground effect — noun the aerodynamic buoyancy produced by a cushion of air below a vehicle moving close to the ground …   English new terms dictionary

  • ground effect — The phenomenon that occurs when the airflow between a moving object and the ground creates downforce …   Dictionary of automotive terms

  • ground effect — noun apparent increase in aerodynamic lift experienced by an aircraft flying close to the ground • Hypernyms: ↑aerodynamic lift, ↑lift …   Useful english dictionary

  • ground effect — /ˈgraʊnd əfɛkt/ (say grownd uhfekt) adjective (of a vehicle, especially a racing car) designed to make use of negative air pressure between the underside of the vehicle and the surface beneath it to achieve greater stability …   Australian English dictionary

  • ground effect machine — ground effect machine, = air cushion vehicle. (Cf. ↑air cushion vehicle) [so called because of the effect of the ground in trapping the air to form a cushion] Abbr: GEM (no periods) …   Useful english dictionary

  • ground-effect machine — ground′ effect machine n. trs hovercraft • Etymology: 1965–70 …   From formal English to slang


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