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aircraft at or below 2,500 feet above the surface
within 4 nautical miles of the primary airport of a
Class D airspace area at an indicated airspeed of more
than 200 knots (230 mph).
2.5.3Class D airspace areas are depicted on
Sectional and Terminal charts with blue segmented
lines, and on IFR En Route Low Altitude charts with
a boxed [D].
2.5.4Arrival extensions for instrument approach
procedures may be Class D or Class E airspace. As a
general rule, if all extensions are 2 miles or less, they
remain part of the Class D surface area. However, if
any one extension is greater than 2 miles, then all
extensions become Class E.
2.5.5Separation for VFR Aircraft.No separation
services are provided to VFR aircraft.
2.6Class E Airspace
2.6.1Definition.Generally, if the airspace is not
Class A, Class B, Class C, or Class D, and it is
controlled airspace, it is Class E airspace.
2.6.2Operating Rules and Pilot/Equipment
Requirements.
2.6.2.1Pilot Certification.No specific certification
required.
2.6.2.2Equipment.No specific equipment
required by the airspace.
2.6.2.3Arrival or Through Flight Entry
Requirements. No specific requirements.
2.6.3Charts.Class E airspace below 14,500 feet
MSL is charted on Sectional, Terminal, and IFR
Enroute Low Altitude charts.
2.6.4Vertical limits.Except for 18,000 feet MSL,
Class E airspace has no defined vertical limit but
rather it extends upward from either the surface or a
designated altitude to the overlying or adjacent
controlled airspace.
2.6.5Types of Class E Airspace
2.6.5.1Surface Area Designated for an Airport.
When designated as a surface area for an airport, the
airspace will be configured to contain all instrument
procedures.
2.6.5.2Extension to a Surface Area.There are
Class E airspace areas that serve as extensions to
Class B, ClassC, and Class D surface areas
designated for an airport. Such airspace provides
controlled airspace to contain standard instrument
approach procedures without imposing a communications
requirement on pilots operating under VFR.
2.6.5.3Airspace Used For Transition.There are
Class E airspace areas beginning at either 700 or
1,200 feet AGL used to transition to/from the
terminal or en route environment.
2.6.5.4En Route Domestic Areas.There are
ClassE airspace areas that extend upward from a
specified altitude and are en route domestic airspace
areas that provide controlled airspace in those areas
where there is a requirement to provide IFR en route
ATC services, but the Federal airway system is
inadequate.
2.6.5.5Federal Airways.The Federal airways are
ClassE airspace areas and, unless otherwise
specified, extend upward from 1,200 feet to, but not
including, 18,000 feet MSL. The colored airways are
Green, Red, Amber, and Blue. The VOR airways are
classified as Domestic, Alaskan, and Hawaiian.
2.6.5.6Offshore Airspace Areas.There are
ClassE airspace areas that extend upward from a
specified altitude to, but not including, 18,000 feet
MSL and are designated as offshore airspace areas.
These areas provide controlled airspace beyond
12nautical miles from the coast of the U.S. in those
areas where there is a requirement to provide IFR en
route ATC services and within which the U.S. is
applying domestic procedures.
2.6.5.7Unless designated at a lower altitude,
ClassE airspace begins at 14,500 feet MSL to, but
not including 18,000 feet MSL overlying the
48contiguous States including the waters within
12nautical miles of the coast of the 48 contiguous
ENR 1.4−10 AIP
15 MAR 07 United States of America
Nineteenth Edition Federal Aviation Administration
States, the District of Columbia, Alaska, including
waters within 12 nautical miles of the coast of Alaska,
and that airspace above FL600; excluding the Alaska
peninsula west of longitude 160°00’00"W; and the
airspace less than 1,500 feet above the surface of the
earth unless specifically so designated.
2.6.6Separation for VFR Aircraft. No separation
services are provided to VFR aircraft.
3. Class G Airspace
3.1General
Class G airspace (uncontrolled) is that portion of
airspace that has not been designated as Class A,
ClassB, Class C, Class D, or Class E airspace.
3.2VFR Requirements
Rules governing VFR flight have been adopted to
assist the pilot in meeting his/her responsibility to see
and avoid other aircraft. Minimum flight visibility
and distance from clouds required for VFR flight are
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