Why does Class E airspace go to surface?

Class E Transition Areas It often surrounds individual airports or groups of airports. So why does the Class E airspace suddenly drop from 1,200 feet AGL to 700 feet AGL in these areas? Think of it like Class B or C airspace, it drops down to protect aircraft on approach or departure from an airport.



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Class E airspace extensions begin at the surface and extend up to the overlying controlled airspace. The extensions provide controlled airspace to contain standard instrument approach procedures without imposing a communications requirement on pilots operating under VFR.

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Perhaps the most misunderstood airspace category, Class Echo (E) starts at 14,500'MSL and extends up to but not including 18,000' (bottom of Alpha Airspace) over the entire continental United States unless otherwise depicted. It also exists above Alpha (above 60,000').

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Class E airspace has no requirements for communication when flying VFR. You only have to maintain two-way communication in Class E airspace when flying IFR.

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No person may operate an ultralight vehicle within Class A, 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 the ATC facility having jurisdiction over that airspace.

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The answer lies within the faded magenta circle that typically surrounds nontowered airports. In the example above, the floor of Class E is 700' on the faded side of the border (the airport surface area) and 1,200' everywhere else.

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Upper Class E airspace operations refer to those that take place over 60,000 feet above mean sea level (MSL) in the National Airspace System (NAS).

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Temporary towers sometimes appear for big events in Class E and G airspaces.

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Class Echo Airspace: 250 knots below 10,000' MSL within class echo airspace. While operating in the traffic pattern at an airport without an operating control tower, it is recommended that the pilot maintain an airspeed of no more than 200 KIAS.

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Class E Airspace Requirements Basic VFR minimums are 3sm visibility, 500' below clouds, 1,000' above clouds, 2,000' horizontal from clouds.

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Class E4 and E3 airspaces do not require prior authorization, but Class E surface area (E2) airspace surrounds small airports and does require airspace authorization.

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The FAA requires ADS-B Out capability in the continental United States, in the ADS-B rule airspace designated by FAR 91.225: Class A, B, and C airspace; Class E airspace at or above 10,000 feet msl, excluding airspace at and below 2,500 feet agl; Within 30 nautical miles of a Class B primary airport (the Mode C veil);

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Violating prohibited airspace established for national security purposes may result in military interception and/or the possibility of an attack upon the violating aircraft, or if this is avoided then large fines and jail time are often incurred.

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Inside the blue zipper line, Class E airspace begins at the indicated altitude.

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VFR in Class E airspace below 10,000 feet requires the pilot to maintain 1,000 feet above and 500 feet below distance from clouds. In this instance, the maximum altitude to maintain VFR is 3,500 feet AGL.

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Class E airspace is often confusing though because it's not clearly depicted on the sectional chart, like the ATC-controlled Classes B, C or D. While Class E airspace is considered “controlled airspace”, you do not need an ATC clearance to fly in it.

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