CDAs seem mostly to be considered applicable to precision approaches, but the NPA and visual approach should also be able to benefit from the advantages provided, whilst the differing techniques pointed out have to be properly tested and evaluated, and a proper safety assessment must be undertaken.
To assist in defining what a CDA is, does the following capture the necessary elements:
Continuous Descent Arrival(CDA) is a technique used by arriving aircraft which provides for continuous descent, to a position that allows it to join a glide path to an arriving runway at an altitude and distance, commensurate with environmental and operational limitations and requirements
Edited this after the comments of Blue heaven, re differences between Arrival and Approach
Last edited by themwasthe days; 25th Aug 2004 at 07:50.