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⚖ Airspace · § 107.41, FAA AIM Chapter 3AIR-028 · 78 of 261

Under 14 CFR Part 107, a drone operation is planned at 350 feet AGL in an area depicted as Class E airspace starting at 1,200 feet AGL. Which statement is correct?

AAuthorization is required because Class E airspace surrounds the planned altitude.
BNo authorization is needed: 350 feet AGL is in Class G airspace below the Class E floor of 1,200 AGL.
CAuthorization depends on proximity to the nearest airport regardless of airspace class.

Why →When Class E begins at 1,200 feet AGL (indicated by a magenta vignette or no specific surface designation on a sectional chart), everything below that altitude is Class G. Uncontrolled airspace. A drone operating at 350 feet AGL in this situation is in Class G, which requires no prior ATC authorization under § 107.41.

The trap →Class E does not automatically reach the surface everywhere; the floor altitude is what matters. And proximity to an airport does not by itself create an authorization requirement. The airspace class does.

Field note →The magenta vignette (shaded area) on a sectional chart shows where Class E begins at 700 feet AGL (not 1,200). No vignette + no surface designation = Class G to 1,200 AGL. Knowing your chart symbols translates directly into knowing when you need authorization.

SOURCE → 14 CFR § 107.41, FAA AIM Chapter 3CHECKED JUL 16ACS II.A.K1MED