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Continuous descent approach information


Schematic descent profile of a conventional approach (red) and a continuous descent approach (green).

Continuous descent approach (CDA), also known as optimized profile descent (OPD), is a method by which aircraft approach airports prior to landing. It is designed to reduce fuel consumption and noise compared to other conventional descents. Instead of approaching an airport in a stairstep fashion, throttling down, and requesting permission to descend to each new (lower) altitude, CDA allows for a smooth, constant-angle descent to landing.

A continuous descent approach starts from the top of descent, i.e., at cruise altitude, and allows the aircraft to fly its individual optimal vertical profile down to runway threshold. Some airports apply constraints to this individual optimal profile.

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Continuous descent approach

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Continuous descent approach (CDA), also known as optimized profile descent (OPD), is a method by which aircraft approach airports prior to landing. It...

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landing procedure, called continuous descent approach at the Worldport, replacing the traditional holding pattern and step-wise descent. CDA is used to reduce...

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the orchid genus Cochlioda, a synonym of Oncidium Continuous descent approach, an aircraft approach method designed to reduce fuel burn and noise Controlled...

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nautical miles (4.6 km; 2.9 mi) apart. Considerable use is made of continuous descent approach techniques to minimise the environmental effects of incoming...

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callouts supplied by the Air Traffic Controller. On both runways, a continuous descent approach is used to minimise the environmental effects of incoming aircraft...

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edges or 'chevrons' on the back of the nacelle reduce noise. A Continuous Descent Approach (CDA) is quieter as less noise is produced while the engines...

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use only PBN approach procedures. RNAV STAR procedures can provide a continuous descent approach also known as an optimized profile descent from cruising...

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approach, independently of ground-based navigation aids in the context of an approach and a form of vertical guidance in the context of climb/descent...

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final approach had fallen well below its target approach speed. A preliminary review of FAA radar return data did not show an abnormally steep descent curve...

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(e.g. approach or runway lighting) to decide whether to continue the descent to a landing; otherwise, the pilot must execute a missed approach procedure...

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