Aeronautical Terms beginning with C

CDM

Collaborative Decision Making. Cooperative effort between the various components of aviation transportation, both government and industry, to exchange information for better decision making.

CDR

Coded Departure Routes. Predefined routes used to route air traffic around areas of severe weather.

CIGS

Ceilings. The height above the ground of the base of the lowest layer of clouds when over half of the sky is obscured.

CLSD

Closed