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SC-147, Traffic Alert & Collision Avoidance System (TCAS)

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SC-147, TCAS, has played a significant role in advancing aviation safety by defining and updating performance standards for TCAS and TCAS II. The committee is now working on the development of ACAS X, which consists of ACAS Xa (a replacement for TCAS II) and ACAS Xo (supporting advanced in-flight services). Additionally, the committee has completed work on ACAS Xu for Unmanned Aircraft Systems and ACAS sXu for Small UAS. The committee is currently working on ACAS Xr for rotorcraft and AAM/UAM applications.


WG-75 Co-Chair
Government Authorized Representative (GAR)
Program Director
J. Stuart Searight, Federal Aviation Administration
Ruy Brandao, Honeywell International, Inc.
Guido Manfredi, Volocopter
Matt Haskin, Federal Aviation Administration

General Information

Terms of Reference (ToR)
Committee Documents
Next Meeting Agenda
April 11, 2024

Contact Information

For additional meeting summaries, please contact the Program Director: Brandi Teel

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