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PILOT/CONTROLLER GLOSSARY 飞行员/管制员术语词典

时间:2011-09-16 15:17来源:蓝天飞行翻译 作者:航空 点击:


AUTOROTATION- A rotorcraft flight condition in which the lifting rotor is driven entirely by action of the air when the rotorcraft is in motion.
a..
Autorotative Landing/Touchdown Autorota-tion. Used by a pilot to indicate that the landing will be made without applying power to the rotor.

b..
Low Level Autorotation. Commences at an altitude well below the traffic pattern, usually below 100 feet AGL and is used primarily for tactical military training.

c.
180 degrees Autorotation. Initiated from a downwind heading and is commenced well inside the normal traffic pattern. “Go around” may not be possible during the latter part of this maneuver.


AVAILABLE LANDING DISTANCE (ALD)- The portion of a runway available for landing and roll‐out for aircraft cleared for LAHSO. This distance is measured from the landing threshold to the hold‐short point.
AVIATION WEATHER SERVICE- A service provided by the National Weather Service (NWS) and FAA which collects and disseminates pertinent weather information for pilots, aircraft operators, and ATC. Available aviation weather reports and forecasts are displayed at each NWS office and FAA FSS.
(See EN ROUTE FLIGHT ADVISORY SERVICE.) (See TRANSCRIBED WEATHER BROADCAST.) (See WEATHER ADVISORY.) (Refer to AIM.)
AWW-
(See SEVERE WEATHER FORECAST
ALERTS.)

AZIMUTH (MLS)- A magnetic bearing extending from an MLS navigation facility.
Note: Azimuth bearings are described as magnetic and are referred to as “azimuth” in radio telephone communications.

B

BACK‐TAXI- A term used by air traffic controllers to taxi an aircraft on the runway opposite to the traffic flow. The aircraft may be instructed to back‐taxi to the beginning of the runway or at some point before reaching the runway end for the purpose of departure or to exit the runway.
BASE LEG-
(See TRAFFIC PATTERN.)
BEACON-
(See AERONAUTICAL BEACON.)
(See AIRPORT ROTATING BEACON.)
(See AIRWAY BEACON.)
(See MARKER BEACON.)
(See NONDIRECTIONAL BEACON.)
(See RADAR.)
BEARING- The horizontal direction to or from any point, usually measured clockwise from true north, magnetic north, or some other reference point through 360 degrees.
(See NONDIRECTIONAL BEACON.)
BELOW MINIMUMS- Weather conditions below the minimums prescribed by regulation for the particular action involved; e.g., landing minimums, takeoff minimums.
BLAST FENCE- A barrier that is used to divert or dissipate jet or propeller blast.
BLIND SPEED- The rate of departure or closing of a target relative to the radar antenna at which cancellation of the primary radar target by moving target indicator (MTI) circuits in the radar equipment causes a reduction or complete loss of signal.
(See ICAO term BLIND VELOCITY.)
BLIND SPOT-An area from which radio transmissions and/or radar echoes cannot be received. The term is also used to describe portions of the airport not visible from the control tower.

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