Ground effect definition

Ground effect means the change in aerodynamic characteristics due to modification of the air flow past the aircraft caused by the presence of the ground.
Ground effect means a condition of improved performance (lift) due to the interference of the
Ground effect means 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. Rotor efficiency is increased by ground effect to a height of about one rotor diameter for most helicopters. (in definition of ‘air-taxiing’, GM2 to AMC13 ATS.TR.210(a)(3));

Examples of Ground effect in a sentence

  • Ground effect portion of light shall be wired to auxiliary switch in the instrument panel.

  • Ground effect machines (hovercraft), convertiplanes, or aircraft that hover by means of propeller slipstream(s) deflected downward are not considered to be helicopters.

  • Ground effect portion of light shall be wired to activate when truck marker lights are turned on.

  • At low Altitude, Ground effect can lead to unexpected wake vortex behavior.

  • Ground effect came to prominence in F1 in the late 1970s, with cars effectively designed in the shape of upside-down airplane wings, creating huge amounts of downforce as they were pushed into the track.

  • Ground effect motion or ground vibration induced by the passage of trains does not by itself initiate the motion of ballast particles.

  • Ground effect aircraft are inherently unproven as only a few examples have been built; notably the Soviet ”ekranoplane” aircraft of the 1960s.

  • Ground effect heavily impacts on the behaviour of the flow around the wing and it can create a dynamic air cushion when the wing moves near the ground.

  • The parameters of the suspension and h/b=0.115h/b=1 h/b=0.115h/b=120 15 α 15 10trimdeg10δetrimdeg 5 5 0 050 100 150airspeed, m/s−550 100 150airspeed, m/s Figure 2.2: Ground effect on trimmed flight in landing configuration tire models were selected to suit the BWB, and used the parameters for a Boeing 747 as a starting point [17].

  • Ground effect is an increase in lift and a decrease in drag resulting from the aircraft flying close to a fixed surface.

Related to Ground effect