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OROCA
Usado para
off-route obstruction clearance altitude
Definição1
An off-route altitude which provides obstruction clearance with a 1,000 foot buffer in nonmountainous terrain areas and a 2,000 foot buffer in designated mountainous areas within the United States. This altitude may not provide signal coverage from ground-based navigational aids, air traffic control radar, or communications coverage.
Fonte1
FEDERAL AVIATION ADMINISTRATION. Pilot/controller glossary (P/CG). 2014.