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  2. Uncontrolled airspace - Wikipedia

    en.wikipedia.org/wiki/Uncontrolled_airspace

    ATC does not exercise any executive authority in uncontrolled airspace, but may provide basic information services to aircraft in radio contact. [5] The aircraft commencing its flight in uncontrolled airspace, and subsequently proceeding into controlled airspace, should obtain clearance from the ATC unit in whose area the controlled part will begin. [9]

  3. Visual meteorological conditions - Wikipedia

    en.wikipedia.org/wiki/Visual_meteorological...

    In uncontrolled airspace there is less risk of a VFR aircraft colliding with an instrument flight rules (IFR) aircraft emerging from a cloud, so aircraft are permitted to fly closer to clouds. An exception to this rule is class B airspace, in which ATC separates VFR traffic from all other traffic (VFR or IFR), which is why in class B airspace ...

  4. National Airspace System - Wikipedia

    en.wikipedia.org/wiki/National_Airspace_System

    Class G airspace is uncontrolled airspace which extends from the surface to either 700 or 1,200 ft. AGL depending on the floor of the overlying Class E, or to the floor of Class A where there is no overlying Class E. In the vicinity of an uncontrolled airport, the CTAF for that airport is used for radio communication among pilots.

  5. List of transponder codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Transponder_Codes

    Non-discrete code assignments in accordance with FAA Order JO 7110.65, 5-2. Also for use in oceanic airspace unless another code is assigned by ATC. [3] US: External ARTCC subset. (Block of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 1200 Australia: Civil VFR flights in class E or G ...

  6. Does Uncle Sam Consider Your Backyard Restricted Airspace? - AOL

    www.aol.com/news/does-uncle-sam-consider...

    The areas where you need FAA approval to fly a model plane or drone are surprisingly large.

  7. Controlled airspace - Wikipedia

    en.wikipedia.org/wiki/Controlled_airspace

    Controlled airspace is airspace of defined dimensions within which air traffic control (ATC) services are provided. [1] [2] The level of control varies with different classes of airspace. Controlled airspace usually imposes higher weather minimums than are applicable in uncontrolled airspace. [3] It is the opposite of uncontrolled airspace.

  8. Airspace - Wikipedia

    en.wikipedia.org/wiki/Airspace

    If the airspace is not Class A, B, C, or D, and is controlled airspace, then it is Class E airspace. Class E airspace extends upward from either the surface or a designated altitude to the overlying or adjacent controlled airspace. When designated as a surface area, the airspace is configured to contain all instrument procedures.

  9. Automotive acronyms and abbreviations - Wikipedia

    en.wikipedia.org/wiki/Automotive_acronyms_and...

    The following items are commonly used automotive acronyms and abbreviations: [1] [2] [3] [4] 5MT: 5-speed manual transmission; A4: 4-speed automatic transmission; A5 ...