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AirspaceQuestion 142 of 934

Which equipment does AIM list for operating in Class C airspace, unless ATC authorizes otherwise?

  1. A two-way radio, a VOR receiver, and a Mode A transponder
  2. Two-way radio, Mode C transponder, and ADS-B Out
  3. A two-way radio, ADS-B In, and a GPS receiver with RAIM
  4. A Mode C transponder with ADS-B In, but no two-way radio
Show answer

Correct answer: Two-way radio, Mode C transponder, and ADS-B Out

Class C needs a two-way radio and an operable transponder with altitude reporting, plus ADS-B Out.

Source: Aeronautical Information Manual (FAA, Basic with Change 3, 9 July 2026), AIM 3-2-4 Class C Airspace — Equipment, page 182

Practice airspace

Questions last reviewed: 18 October 2026