rotor downwash

См. также в других словарях:

• Downwash — The effect of downwash from a hovering helicopter is clearly visible on the surface of water below. In aeronautics downwash is the air forced down by the aerodynamic action of a wing or helicopter rotor blade in motion, as part of the process of… …   Wikipedia

• downwash — i. Fluid flow moving at a deflected angle after deflection by helicopter rotors and measured parallel to the disc. ii. Fluid flow deflected at an angle more perpendicular to the motion of the airfoil, measured in the plane parallel to the plane… …   Aviation dictionary

• downwash — noun the downward deflection of an airstream by a wing or rotor blade …   English new terms dictionary

• Helicopter rotor — This article is about helicopter main rotor systems. For antitorque control, see tail rotor. Helicopter rotor The rotor head of a Sikorsky S 92 A helicopter main rotor or rotor system is a type of fan that is used to generate both the aerodynamic …   Wikipedia

• Brownout (aviation) — In aviation, a brownout (or brown out ) is an in flight visibility restriction due to dust or sand in the air.cite book publisher = National Transportation Safety Board title = Special Investigation Report on Emergency Medical Services Operations …   Wikipedia

• vortex ring state — The operating state of a helicopter main rotor in which the axial flow through the rotor is opposite to the axial flow outside the rotor disc area and to the rotor thrust. It is an unstable condition of powered flight in which the helicopter… …   Aviation dictionary

• settling with power — An unstable condition of powered flight in which the helicopter settles in its own rotor downwash. In this case, the helicopter descends in turbulent air that has just been accelerated downward by the rotor. The reaction of this air on the rotor… …   Aviation dictionary

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• Pitot-static system — A pitot static system is a system of pressure sensitive instruments that is most often used in aviation to determine an aircraft s airspeed, Mach number, altitude, and altitude trend. A pitot static system generally consists of a pitot tube, a… …   Wikipedia

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