航行情報(bào)手冊(cè) Aeronautical Information Manual (AIM) 3

時(shí)間：2011-04-18 00:52來(lái)源：藍(lán)天飛行翻譯 作者：航空 點(diǎn)擊：次

RESPONSIBILITY FOR SEPARATION OF
AIRCRAFT.)MAWP. Missed Approach Waypoint
MAXIMUM AUTHORIZED ALTITUDE. A pub-lished altitude representing the maximum usable altitude or flight level for an airspace structure or route segment. It is the highest altitude on a Federal airway, jet route, area navigation low or high route, or other direct route for which an MEA is designated in 14 CFR Part 95 at which adequate reception of navigation aid signals is assured.
MAYDAY.The international radiotelephony distress signal. When repeated three times, it indicates
PCG M.1
imminent and grave danger and that immediate assistance is requested.
(See PAN-PAN.) (Refer to AIM.)MCA.
(See MINIMUM CROSSING ALTITUDE.)MDA.
(See MINIMUM DESCENT ALTITUDE.)MEA.
(See MINIMUM EN ROUTE IFR ALTITUDE.)MEARTS.
(See MICRO-EN ROUTE AUTOMATED RADAR TRACKING SYSTEM.)METEOROLOGICAL IMPACT STATEMENT. An unscheduled planning forecast describing conditions expected to begin within 4 to 12 hours which may impact the flow of air traffic in a specific center’s (ARTCC) area.
METER FIX ARC. A semicircle, equidistant from a meter fix, usually in low altitude relatively close to the meter fix, used to help CTAS/HOST calculate a meter time, and determine appropriate sector meter list assignments for aircraft not on an established arrival route or assigned a meter fix.
METER FIX TIME/SLOT TIME. A calculated time to depart the meter fix in order to cross the vertex at the ACLT. This time reflects descent speed adjustment and any applicable time that must be absorbed prior to crossing the meter fix.
METER LIST. (See ARRIVAL SECTOR ADVISORY LIST.)METER LIST DISPLAY INTERVAL. A dynamic parameter which controls the number of minutes prior to the flight plan calculated time of arrival at the meter fix for each aircraft, at which time the TCLT is frozen and becomes an ACLT; i.e., the VTA is updated and consequently the TCLT modified as appropriate until frozen at which time updating is suspended and an ACLT is assigned. When frozen, the flight entry is inserted into the arrival sector’s meter list for display on the sector PVD/MDM. MLDI is used if filed true airspeed is less than or equal to freeze speed parameters (FSPD).
METERING. A method of time-regulating arrival traffic flow into a terminal area so as not to exceed a predetermined terminal acceptance rate.
METERING AIRPORTS. Airports adapted for metering and for which optimum flight paths are defined. A maximum of 15 airports may be adapted.
METERING FIX. A fix along an established route from over which aircraft will be metered prior to entering terminal airspace. Normally, this fix should be established at a distance from the airport which will facilitate a profile descent 10,000 feet above airport elevation (AAE) or above.
METERING POSITION(S). Adapted PVDs/ MDMs and associated “D” positions eligible for display of a metering position list. A maximum of four PVDs/MDMs may be adapted.
METERING POSITION LIST. An ordered list of data on arrivals for a selected metering airport displayed on a metering position PVD/MDM.
MFT.
(See METER FIX TIME/SLOT TIME.)MHA.
(See MINIMUM HOLDING ALTITUDE.)MIA.
(See MINIMUM IFR ALTITUDES.)MICROBURST. A small downburst with outbursts of damaging winds extending 2.5 miles or less. In spite of its small horizontal scale, an intense microburst could induce wind speeds as high as 150 knots
(Refer to AIM.)MICRO-EN ROUTE AUTOMATED RADAR TRACKING SYSTEM (MEARTS). An automated radar and radar beacon tracking system capable of employing both short-range (ASR) and long-range (ARSR) radars. This microcomputer driven system provides improved tracking, continuous data record-ing, and use of full digital radar displays.
MICROWAVE LANDING SYSTEM. A precision instrument approach system operating in the microwave spectrum which normally consists of the following components:
a.Azimuth Station.
b.Elevation Station.
c.Precision Distance Measuring Equipment.
(See MLS CATEGORIES.)MID RVR.
(See VISIBILITY.)MIDDLE COMPASS LOCATOR.
(See COMPASS LOCATOR.)PCG M.2
MIDDLE MARKER. A marker beacon that defines a point along the glideslope of an ILS normally located at or near the point of decision height (ILS Category I). It is keyed to transmit alternate dots and dashes, with the alternate dots and dashes keyed at the rate of 95 dot/dash combinations per minute on a 1300 Hz tone, which is received aurally and visually by compatible airborne equipment.
(See INSTRUMENT LANDING SYSTEM.)(See MARKER BEACON.)(Refer to AIM.)MILES-IN-TRAIL. A specified distance between aircraft, normally, in the same stratum associated with the same destination or route of flight.
MILITARY AUTHORITY ASSUMES RESPONSI-BILITY FOR SEPARATION OF AIRCRAFT. A condition whereby the military services involved assume responsibility for separation between participating military aircraft in the ATC system. It is used only for required IFR operations which are specified in letters of agreement or other appropriate FAA or military documents.
MILITARY LANDING ZONE. A landing strip used exclusively by the military for training. A military landing zone does not carry a runway designation.
MILITARY OPERATIONS AREA.
(See SPECIAL USE AIRSPACE.)MILITARY TRAINING ROUTES. Airspace of defined vertical and lateral dimensions established for the conduct of military flight training at airspeeds in excess of 250 knots IAS.
(See IFR MILITARY TRAINING ROUTES.)(See VFR MILITARY TRAINING ROUTES.)MINIMA.
(See MINIMUMS.)MINIMUM CROSSING ALTITUDE. The lowest altitude at certain fixes at which an aircraft must cross when proceeding in the direction of a higher minimum en route IFR altitude (MEA).
(See MINIMUM EN ROUTE IFR ALTITUDE.)

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