National Airspace System

Georgetown Airport is outside the magenta shaded area, which indicates the floor of Class E airspace is at 1,200 feet AGL. The airport elevation is given in the airport data as 2,623 feet MSL. Therefore, the Class E airspace above Georgetown Airport is 3,823 feet MSL (2,623 + 1,200). Answer (A) is incorrect because Class E airspace begins at the surface only when surrounded by a magenta segmented circle. Answer (B) is incorrect because Class E airspace begins at 700 feet AGL inside the magenta shaded areas.

No person may operate an sUA in Class B, Class C, or Class D airspace or within the lateral boundaries of the surface area of Class E airspace designated for an airport unless that person has prior authorization from ATC.

Runway holding position markings on taxiways identify the locations on a taxiway where an aircraft is supposed to stop when it does not have clearance to proceed onto the runway.

Onawa (K36) is in the bottom right quadrant of the sectional excerpt. It is outside of any shading or lines, which indicates the airport is in Class G airspace up to 1,200 feet AGL.

The thick blue lines on the sectional chart indicate the boundaries of the overlying Class B airspace. Within each segment, the floor and ceiling are denoted by one number over a second number or the letters SFC. The floor of the Class B airspace is 4,000 feet MSL.

The FAA Near Midair Collision System (NMACS) indicates that 81% of the incidents occurred in clear skies and unrestricted visibility conditions.