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庞巴迪环球5000公务机机组操作手册 Bombardier Global-导航(5)

时间:2011-11-11 09:40来源:蓝天飞行翻译 作者:公务机
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Active (interrogated) range is possible up to 70 to 100 NM depending on atmospheric conditions. Passive range to a distance of 120 NM is possible if intruder aircraft has a TCAS change 7 and a GPS installed.
The system provides appropriate aural and visual cues to the flight crew when TCAS computer analysis of an airplane signal predicts a penetration of TCAS protected airspace.
Target/Threat Advisories
The system provides four types of advisories:
. Traffic Advisory

.
 Traffic advisories (TA) symbols appear on the MFD, when target(s) is projected to converge with the TCAS equipped airplane in less than 45 seconds, with the closest point of approach being inside a minimum vertical separation envelope. Traffic advisories are generated for aircraft with operative mode S, mode C, or mode A transponders. The relative bearing and range of the intruder are displayed.


.
 Resolution advisories (RA) intruder symbols appear on the MFD, when target (s) is predicted to penetrate the protected vertical envelope in less than 30 seconds. A green fly-to Pitch Target Zone rectangle is also displayed on the PFD ADI which indicates the rate that must be achieved to maintain safe separation. Similarly, red Pitch Avoidance Zones appear which indicate pitch rates that should be avoided. RA display can only be issued if intruder airplane is equipped with mode S transponder.


.
Resolution Advisory

.
Proximity Traffic


. Proximity Traffic (PT) symbols appear on the MFD when non-threat airplane(s), which have a flight path that approaches the collision area. The PT symbol is displayed if the target does not qualify for a TA but is currently within 6.5 NM and 1200 feet of the TCAS airplane.

.
Other Traffic

 

. Other Traffic (OT) symbols appear on the MFD to indicate targets outside of the 1200 foot relative altitude region of PT, up to the TCAS range set by the pilot and at a relative altitude difference of 2700 feet.
The TCAS system provides no indication of traffic conflicts if the intruder airplane is without an operative transponder.
Rev 2A, Apr 11, 2005 Flight Crew Operating Manual Volume 2
TRAFFIC ALERT AND COLLISION AVOIDANCE SYSTEM (TCAS) (CONT'D)
TCAS Symbology
DATA TAGS  DEFINITION 
Up Arrow Down Arrow Plus Sign (+) Minus Sign (.)  Indicates climbing traffic. Indicates descending traffic. Relative altitude threat, airplane is above own airplane. Relative altitude threat, airplane is below own airplane. 

THREAT LEVEL CAUSE  SYMBOL

Resolution Advisory (RA)
Traffic Advisory (TA)
Proximate Traffic (PT)
Other Traffic (OT) Intruding aircraft is 100 feet above and descending at least 500 feet per minute.
Intruding aircraft level with and not climbing or descending.
Traffic is 1,200 feet below and climbing at least 500 feet per minute.
Traffic is 2,700 feet above and descending at least 500 feet per minute.
 
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