How high does class e go?

Class E. Controlled airspace which is neither class A, B, C nor D. In most areas of the United States, class E airspace extends from 1,200 feet (370 m) above ground level (AGL) up to but not including 18,000 feet (5,500 m) MSL, the lower limit of class A airspace.



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Identifying the ceiling of Class E airspace is easy, since it always ends at 17,999' MSL, with Class A airspace above (and then starts again at FL600/60,000' if you're out joyriding in an SR-71).

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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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Paramotors can be flown in uncontrolled airspace (Class G and most Class E airspace) and cannot be flown over congested areas of people or restricted areas. Additional areas may be off-limits in the event of a Temporary Flight Restriction (TFR) as noted in a Notice to Airmen (NOTAM).

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In the United States, the Federal Aviation Administration (FAA) has the sole authority to regulate all navigable airspace exclusively determining the rules and requirements for its use.

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Sometimes Class E airspace goes all the way down to the surface of the ground. This is called Class E surface area.

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In the 1900s, Hungarian physicist Theodore von Kármán determined the boundary to be around 50 miles up, or roughly 80 kilometers above sea level. Today, though, the Kármán line is set at what NOAA calls “an imaginary boundary” that's 62 miles up, or roughly a hundred kilometers above sea level.

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When you are flying under VFR (Visual Flight Rules), which you will be flying under 99.9% of the time as a private pilot, you do not need a clearance to enter into Class E airspace.

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Class E airspace: Transponder requirements vary depending on the altitude of the aircraft: Below 10,000 feet MSL (mean sea level): A transponder is not required unless the aircraft is within 30 nautical miles of a Class B airport.

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Airspace at any altitude over FL600 (60,000 MSL) (the ceiling of Class A airspace) is designated Class E airspace. The U.S. does not use ICAO Class F. Class G (uncontrolled) airspace is mostly used for a small layer of airspace near the ground, but there are larger areas of Class G airspace in remote regions.

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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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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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