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Low flight beneath a 700-foot Class E base

Remote Pilot (Part 107) practice question 10 of 21 on Airspace / Classification. ACS element UA.II.A.K1e · difficulty: standard. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONA remote pilot plans to fly at 300 feet AGL in an area away from any airport where the base of the overlying Class E airspace is 700 feet AGL. In which class of airspace will the aircraft be operating?

  1. AClass G
  2. BClass E, because it is below 1,200 feet AGL
  3. CClass E surface area
Show the answer and explanation

Correct answer: A. Class G

  • A — correct Class G extends from the surface to the base of the overlying Class E; at 300 feet AGL the aircraft is below the 700-foot Class E base and therefore in Class G.
  • B — incorrect Being below 1,200 feet does not place an aircraft in Class E; here the Class E base is 700 feet AGL and the aircraft is below it, in Class G.
  • C — incorrect A Class E surface area begins at the ground and is designated for an airport; the scenario states the Class E base is 700 feet AGL, so the airspace below is Class G.

BACKGROUND

Class G airspace is uncontrolled airspace that extends from the surface to the base of the overlying Class E airspace. In many areas that base is 700 feet above ground level (AGL); in most areas it is 1,200 feet AGL, and in some places it is the surface. A remote pilot flying below the local Class E base is in Class G and does not need Air Traffic Control (ATC) authorization. Knowing the local Class E base is therefore essential to deciding whether authorization is required.

STUDY TIP

Compare your planned altitude with the local Class E base: below it is Class G, at or above it is Class E.

KEY POINTS

  • Class G reaches up to the base of the overlying Class E.
  • With a 700-foot AGL Class E base, 300 feet AGL is in Class G.
  • No ATC authorization is needed in Class G.

SOURCES

  • remote_pilot_study_guide.txt Chapter 2 "Class E Airspace" and "Class G Airspace"
Practice the Remote Pilot (Part 107) test →Timed 60-question exam, by ACS area, or review your misses. Free.
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.