Correct answer
Aerodynamics and fuel consumption.
Aerodynamics and fuel consumption. The effect depends on design, speed and conditions; not every change improves aerodynamics or reduces consumption. A fairing can protect against airflow but does not guarantee greater stability in crosswinds. Keep parts properly secured and observe applicable modification requirements.
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Nothing, because fairings never affect air resistance.
Appearance alone, without any aerodynamic effect.
Aerodynamics and fuel consumption.
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