What should be observed when taxiing behind a commercial airliner?
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A
To avoid wake turbulence, a minimum distance of 700 m should be maintained.
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B
To avoid the jet blast, a minimum distance of 600 m should be maintained.
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C
To avoid wake turbulence, a minimum distance of 300 m should be maintained.
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D
To avoid the jet blast, a minimum distance of 200 m should be maintained.
Jet blast is the high-speed exhaust that comes out of a jet engine, particularly on or before take-off.
Jet blast can be a hazard to people or other unsecured objects behind the aircraft, and is capable of flattening buildings and destroying vehicles and causing significant damage or control issues for smaller aircraft.
A large jet-engined aircraft can produce winds of up to 100 knots (190 km/h; 120 mph) as far away as 200 metres behind it at 40% maximum rated power.
Maintaining this minimum distance ensures safety by avoiding the powerful forces that jet engines produce, which can move aircraft, blow debris, and create turbulence that can be dangerous during ground operations.
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Austro Control1
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