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Incorrect. There absolutely IS ATC control at FL600. It’s called Class A airspace, and all aircraft are required to have a clearance and operate under Instrument Flight Rules. So if an aircraft is above that airspace, and the pilot wants to descend into it from above, then he must obtain a clearance prior to doing so.
Last edited by 450knotOffice; 07-12-2022 at 09:36 PM..
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