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Class B configuration

Remote Pilot (Part 107) practice question 17 of 21 on Airspace / Classification. ACS element UA.II.A.K1a · difficulty: recall. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONHow does the Remote Pilot Study Guide describe the typical configuration of a Class B airspace area?

  1. AA surface area plus two or more layers, individually tailored
  2. BA single surface area with a uniform five nautical mile radius
  3. CA circular area whose floor is 1,200 feet and whose top is 4,000 feet above the airport elevation
Show the answer and explanation

Correct answer: A. A surface area plus two or more layers, individually tailored

  • A — correct The study guide says each Class B area is individually tailored and consists of a surface area and two or more layers, which is why some resemble upside-down wedding cakes.
  • B — incorrect A five nautical mile surface area describes the usual Class C surface area; Class B has multiple layers and is not uniform.
  • C — incorrect A floor of 1,200 feet and a top of 4,000 feet above the airport elevation describe the outer circle of Class C airspace, not Class B.

BACKGROUND

Class B airspace is the most complex controlled airspace a remote pilot is likely to encounter. Each Class B area is individually designed, but the study guide describes the typical shape as a surface area with two or more layers stacked above it. Because the layers widen with altitude, some Class B areas resemble upside-down wedding cakes. The design is meant to contain all published instrument procedures once an aircraft enters the airspace.

STUDY TIP

Picture the upside-down wedding cake: the narrowest part touches the surface at the airport and each higher layer spreads wider.

KEY POINTS

  • Class B consists of a surface area and two or more layers.
  • Each Class B area is individually tailored.
  • The shape is designed to contain all published instrument procedures.

SOURCES

  • remote_pilot_study_guide.txt Chapter 2 "Class B Airspace"
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MORE ON AIRSPACE / CLASSIFICATION

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.