Airspace classes explained

The largest division of airspace: a region within which a flight information service and alerting service are provided. Every point on Earth sits in some FIR.

In playlists

• Airspace

Also on

• Glossary: CTR
• Glossary: TMA
• Glossary: FIR
• Wiki: Airspace Classes (A–G, CTR, TMA, RMZ, TMZ)
• Wiki: CTR (Control Zone)