Back to: "R"
RA (1)
- Usado para
- resolution advisory
- Definição1
- A display indication given to the pilot by the traffic alert and collision avoidance systems (TCAS II) recommending a maneuver to increase vertical separation relative to an intruding aircraft. Positive, negative, and vertical speed limit (VSL) advisories constitute the resolution advisories. A resolution advisory is also classified as corrective or preventive.
- Fonte1
- FEDERAL AVIATION ADMINISTRATION. Pilot/controller glossary (P/CG). 2014. Disponível em:
- Definição2
- Verbal or display indication recommending increased vertical separation relative to an intruding aircraft.
- Fonte2
- GUNSTON, Bill. The Cambridge aerospace dictionary. Cambridge: Cambridge University, 2004. (Cambridge aerospace series.)
- Fonte3
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Aircraft operations: volume 1: flight procedures. 5th. ed. Montreal, 2006. (Doc. 8168 OPS/611).
- Fonte4
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Airborne collision avoidance systems. Montreal, 1985. (Cir. 195 AN/118).
- Contexto
- TAs are intended to alert pilots to the possibility of a resolution advisory (RA), to enhance situational awareness, and to assist in visual acquisition of conflicting traffic. However, visually acquired traffic may not be the same traffic causing a TA. Visual perception of an encounter may be misleading, particularly at night.
- The Mode S air-ground data link permits the transmission of ACAS resolution advisories to ATS facilities. This would allow display of the resolution advisory to controllers. 1.3.14 Two ACAS-equipped aircraft in conflict co-ordinate resolution advisories with each other using the Mode S air-air data link. This ensures that the resolution advisory displayed in own aircraft is compatible with the resolution advisory displayed in the threat ACAS aircraft.
- Português
- aviso de resolução