Use of Continuous Descent Approach (CDA) To Save Fuel
See also: Continuous Descent ApproachUPS Airlines is experimenting with a Global Positioning System-based landing procedure, called Continuous-Descent Approach at the Worldport, replacing the traditional holding pattern and step-wise descent. CDA is used to reduce the time and fuel needed to approach a runway and land by eliminating the need to alternatively reduce and increase throttle to descend and level off. UPS Airlines estimates that this procedure saves an average of 250 to 465 lbs (110–210 kilograms) of fuel per flight. CDA is part of the Federal Aviation Administration's long-term "Next-Gen" air traffic control plan.
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