To comply with the approved airline Operations Manual in a twin-engine aircraft (1 h 45 min flight on one engine at an airspeed of 420 kt to reach the alternate aerodromes in still air), a pilot has to choose an ATC route in North Atlantic high-level airspace while also taking the shortest possible time. Given that the three alternate aerodromes considered are SHANNON, SANTA MARIA and ST JOHN'S TORBAY, the track to be chosen between PARIS and WASHINGTON will be:4
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In the NAT HLA (North Atlantic High Level Airspace), a pilot should first of all take the following action in the event of a failure of the last inertial navigation system:4
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A pilot whose aircraft does not have NAT HLA operational approval has to fly via the SHANNON-GANDER great circle. The flight can be planned:4
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For an operation in NAT HLA (North Atlantic High Level Airspace) along notified special routes, unless otherwise specified, an aircraft must be equipped with at least:4
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The NAT HLA (North Atlantic High Level Airspace) extends from:4
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The NAT HLA (North Atlantic High Level Airspace) extends vertically between flight levels:4
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In the event of an en-route HF communication failure in an NAT HLA (North Atlantic High Level Airspace), the appropriate VHF frequency for air to air communications is:4
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In the event of communication failure in an NAT HLA (North Atlantic High Level Airspace), the pilot must:4
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The validity period of a night-time organised track system in NAT HLA (North Atlantic High Level Airspace) is normally at 30Β°W, between:4
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The validity period of a day-time organised track system in NAT HLA (North Atlantic High Level Airspace) is normally, at 30Β°W, between:4
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Other exam subjects ATPL - Airline Transport Pilot license