Home › Part 107 Practice Tests › Airspace & Flight Restrictions Questions › Question 11
Class D airspace generally has a lateral radius of about
- A.10 NM
- B.4 NM
- C.5 NM
Correct answer
B. 4 NM
Why
Class D airspace is roughly 4 NM in radius around a towered airport, tailored for instrument approaches. The 5 NM and 10 NM figures are the core and shelf radii of Class C airspace.
Source: FAA-G-8082-22 Ch. 2 · ACS knowledge area: Airspace Classification and Operating Requirements · From the Airspace & Flight Restrictions practice bank (AIR-011).