From: firstname.lastname@example.org (David A. Domino) Organization: MITRE Corporation Date: 30 Jun 95 03:47:07 References: 1 2
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In article <airliners.1995.784@ohare.Chicago.COM>, email@example.com (TriStar500) wrote: (balance edited) > > Also, for a RA to be issued, both aircraft must be equipped with a Mode S > transponder, a special version of TPNDR designed to work with TCAS. If the > other aircraft only has a Mode C TPNDR then TCAS can only issure a TA. Regarding the last paragraph, TCAS II will issue an RA against any altitude reporting transponder equipped aircraft, not just Mode S equipment. Coordinated RA manuevers (e.g. one system posts a climb RA, the other a descent RA) are only possible with both encounter aircraft equipped with TCAS II. My most recent RA experience was against a VFR light twin.