Pilot/Controller Glossary 飞行员/空管术语

时间：2011-08-13 13:07来源：蓝天飞行翻译 作者：航空 点击：次

OCEANIC TRANSITION ROUTE (P/CG) - An ATS route established for the purpose of transitioning aircraft to/from an organized track system.
OFF COURSE (P/CG) - A term used to describe a situation where an aircraft has reported a position fix or is observed on radar at a point not on the ATC-approved route of flight.
OFF-ROUTE OBSTRUCTION CLEARANCE ALTITUDE/OROCA - 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.
OFF-ROUTE TERRAIN CLEARANCE ALTITUDE/ORTCA - An off-route altitude which provides terrain clearance with a 3,000 foot buffer from terrain. This altitude may not provide signal coverage from ground-based navigational aids, air traffic control radar, or communications coverage.
OFF-ROUTE VECTOR - A vector by Air Traffic Control which takes an aircraft off a previously assigned route. Altitude assigned by Air Traffic Control during such vectors provide require obstacle clearance.
OFFSET PARALLEL RUNWAYS - Staggered runways having centerlines which are parallel.
OFFSHORE CONTROL AREA (P/CG) - That portion of airspace between the U.S. 12-mile limit and the oceanic CTA/FIR boundary within which air traffic control is exercised. These areas are established to permit the application of domestic procedures in provision of air traffic control services. Offshore control area is generally synonymous with Federal Aviation Regulations, FAR Part 71, Subpart E, "Control Areas and Control Area Extensions."
ON COURSE -
(1)
Used to indicate that an aircraft is established on the route centerline.

(2)
Used by Air Traffic Control to advise a pilot making a radar approach that his aircraft is lined up on the final approach course. (See On-Course Indication)

ON-COURSE INDICATION - An indication on an instrument which provides the pilot a visual means of determining that the aircraft is located on the centerline of a given navigational track; or an indication on a radar scope that an aircraft is on a given track.
OPERATIONAL AIR TRAFFIC -
(1)
EUROPE AND AFRICA - Traffic that cannot comply with the provisions of General Air Traffic. Reason for non-compliance may be insufficient communications equipment or nature of the mission to be flown. In certain countries, Operational Air Traffic will be under control of Military Area Control Center or Radar while in other areas both General and Operational Air Traffic are controlled by a single civil control or advisory unit. Consult Department of Defense Flight Information Publication, AREA PLANNING (AP2), for applicability in the area concerned.

(2)
NORTHERN EUROPE (GM, U.K., BENELUX) - In the sophisticated radar environment of Northern Europe, Operational Air Traffic service is routinely provided for military aircraft by the military branch of the dual civil/military Air Traffic Control system. See Department of Defense Flight Information Publication, AREA PLANNING (AP2), Flight Plan, Europe Regional Procedures for details.

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