時(shí)間：2011-04-18 00:47來源：藍(lán)天飛行翻譯 作者：航空 點(diǎn)擊：次
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Services Available to Pilots 4.1.10 EXAMPLE. Low altitude alert, check your altitude immediately. The, as appropriate, MEA/MVA/MOCA in your area is (altitude) or, if past the final approach fix (nonprecision approach) or the outer marker or fix used in lieu of the outer marker (precision approach), the, as appropriate, MDA/DH (if known) is (altitude). 2. Terminal Automated Radar Terminal System (ARTS) IIIA, Common ARTS (to include ARTS IIIE and ARTS IIE) (CARTS), Micro En Route Automated Radar Tracking System (MEARTS), and Standard Terminal Automation Replacement System (STARS) facilities have an automated function which, if operating, alerts controllers when a tracked Mode C equipped aircraft under their control is below or is predicted to be below a predetermined minimum safe altitude. This function, called Minimum Safe Altitude Warning (MSAW), is designed solely as a controller aid in detecting potentially unsafe aircraft proximity to terrain/obstructions. The ARTS IIIA, CARTS, MEARTS, and STARS facility will, when MSAW is operating, provide MSAW monitoring for all aircraft with an operating Mode C altitude encoding transponder that are tracked by the system and are: (a) Operating on an IFR flight plan; or (b) Operating VFR and have requested MSAW monitoring. 3. Terminal AN/TPX.42A (number beacon decoder system) facilities have an automated function called Low Altitude Alert System (LAAS). Although not as sophisticated as MSAW, LAAS alerts the controller when a Mode C transponder equipped aircraft operating on an IFR flight plan is below a predetermined minimum safe altitude. NOTE. Pilots operating VFR may request MSAW or LAAS monitoring if their aircraft are equipped with Mode C transponders. EXAMPLE. Apache Three Three Papa request MSAW/LAAS. b. Aircraft Conflict Alert. 1. Controllers will immediately issue an alert to the pilot of an aircraft under their control if they are aware of another aircraft which is not under their control, at an altitude which, in the controller’s judgment, places both aircraft in unsafe proximity to each other. With the alert, when feasible, the controller will offer the pilot the position of the traffic AIM if time permits and an alternate course(s) of action. Any alternate course(s) of action the controller may recommend to the pilot will be predicated only on other traffic being worked by the controller. EXAMPLE. American Three, traffic alert, (position of traffic, if time permits), advise you turn right/left heading (degrees) and/or climb/descend to (altitude) immediately. 4.1.17. Radar Assistance to VFR Aircraft a.Radar equipped FAA ATC facilities provide radar assistance and navigation service (vectors) to VFR aircraft provided the aircraft can communicate with the facility, are within radar coverage, and can be radar identified. b.Pilots should clearly understand that authoriza-tion to proceed in accordance with such radar navigational assistance does not constitute authoriza-tion for the pilot to violate CFRs. In effect, assistance provided is on the basis that navigational guidance information issued is advisory in nature and the job of flying the aircraft safely, remains with the pilot. c.In many cases, controllers will be unable to determine if flight into instrument conditions will result from their instructions. To avoid possible hazards resulting from being vectored into IFR conditions, pilots should keep controllers advised of the weather conditions in which they are operating and along the course ahead. d.Radar navigation assistance (vectors) may be initiated by the controller when one of the following conditions exist: 1.The controller suggests the vector and the pilot concurs. 2.A special program has been established and vectoring service has been advertised. 3.In the controller’s judgment the vector is necessary for air safety. e. Radar navigation assistance (vectors) and other radar derived information may be provided in response to pilot requests. Many factors, such as limitations of radar, volume of traffic, communica-tions frequency, congestion, and controller workload could prevent the controller from providing it. Controllers have complete discretion for determining if they are able to provide the service in a particular case. Their decision not to provide the service in a particular case is not subject to question. Services Available to Pilots 4.1.11 4.1.18. Terminal Radar Services for VFR Aircraft a. Basic Radar Service: 1. In addition to the use of radar for the control of IFR aircraft, all commissioned radar facilities provide the following basic radar services for VFR aircraft: (a)Safety alerts. (b)Traffic advisories. (c)Limited radar vectoring (on a workload permitting basis). (d)Sequencing at locations where proce-dures have been established for this purpose and/or when covered by a Letter of Agreement. NOTE. When the stage services were developed, two basic radar services (traffic advisories and limited vectoring) were identified as “Stage I.” This definition became unneces-sary and the term “Stage I” was eliminated from use. The term “Stage II” has been eliminated in conjunction with the airspace reclassification, and sequencing services to locations with local procedures and/or letters of agreement to provide this service have been included in basic services to VFR aircraft. These basic services will still be provided by all terminal radar facilities whether they include Class B, Class C, Class D or Class E airspace. “Stage III” services have been replaced with “Class B” and “TRSA” service where applicable. 2.Vectoring service may be provided when requested by the pilot or with pilot concurrence when suggested by ATC. 3.Pilots of arriving aircraft should contact approach control on the publicized frequency and give their position, altitude, aircraft call sign, type aircraft, radar beacon code (if transponder equipped), destination, and request traffic information. |
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