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As per Wikipedia there is no internationally agreed upper boundary of national airspace, but if there was it would be up to the countries themselves. Some equatorial countries define their airspace up to the geostationary orbit altitude at 35,786 kilometres (22,236 miles). The United States' FAA legislation ends at the upper boundary of class A airspace at ...


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I can not find any guidance other than what you have already noted for Class B airspace endorsements. The ground and flight training requirements seems to be left up to the discretion of the CFI. Though, it seems to be very similar to a solo endorsement as having criteria that is subjective to student and instructor. Similar to a solo endorsement, a ...


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It depends on the country's level of aggression and anti-aircraft weapons. The U2 made several flights over the USSR at 70,000 feet without permission. Governments will always claim as much territory as they can get away with diplomatically and militarily. The ability to orbit is a practical limit, there is a zone where aircraft don't have enough air to ...


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According to ICAO PANS-ATM (Doc 4444) 16th Edition, Waypoint is a type of significant point. Mentioned in Chapter 1 - Definition as Significant point :- A specified geographical location used in defining an ATS route or the flight path of an aircraft and for other navigation and ATS purposes. Note.— There are three categories of significant points: ground-...


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