Test yourself: 5 hard theory questions, free Airspace, weather, regs and aerodynamics, FAA-style — instant score, every answer explained. No signup.
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CPDLC message types include:
A
Clearances, information, requests, and reports in standardized text format
B
Voice messages only
C
Radar returns
D
TCAS advisories
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See where you stand: 5 hard questions, instant score, every answer explained.