"The influence of the earth " is a phenomenon consisting in
- Withstanding the significant shortening of the landing phase
- Reduction of induced drag and angle of attack required for level flight (at a given speed), which is due to the proximity of the groundCorrect answer
- Achieving greater power by internal combustion engines near the ground (for naturally aspirated engines)
- Achieving greater thrust to the ground - this effect disappears at a height approximately equal to the span of the aircraft
Explanation
Ground effect is the aerodynamic phenomenon experienced when flying close to the surface.
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