Part 107 sectional chart question: 2026-10-22

Daily question archive. Answer it, then read the step-by-step explanation.

Daily question for Thursday, Oct 22, 2026

FAA sectional chart excerpt for this question — Sectional: Los Angeles, edition effective Sep 3, 2026 (next edition Oct 29, 2026). Source: FAA (public domain).

Refer to the marked airport. What are the vertical limits of the Class D airspace at SAN LUIS OBISPO COUNTY RGNL (SBP)?

A. From the surface up to and including 2,700 ft AGL
B. From the surface up to and including 2,700 ft MSL
C. From the surface up to and including 2,488 ft MSL

Answer: B. Inside the dashed blue Class D circle you'll find a number in a box: [27]. It gives the ceiling in hundreds of feet MSL, so this Class D goes from the surface to 2,700 ft MSL. Field elevation is 212 ft MSL, so the Class D extends about 2,488 ft above the airport. Chart altitudes for airspace are MSL unless marked AGL.

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