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Calculation of fuel requirements (especially trip fuel and reserve fuel) is the most safety-critical aspect of flight planning. This calculation is somewhat complicated: Rate of fuel burn depends on ambient temperature, aircraft speed, and aircraft altitude, none of which are entirely predictable.
If the flight plan calls for hold planning, the additional fuel and hold time should appear on the flight plan. Organized Tracks are a series of paths similar to airways which cross ocean areas. Some organized track systems are fixed and appear on navigational charts (e.g., the NOPAC tracks over the Northern Pacific Ocean).
The timetables of very small airlines, such as Scenic Airways, consisted of one sheet of paper, with their hub's flight time information on the front, and the return times on the back. In recent years, most airlines have stopped production of printed timetables, in order to cut costs and reduce the delay between a change of schedule and a new ...
In the air, the flight computer can be used to calculate ground speed, estimated fuel burn and updated estimated time of arrival. The back is designed for wind vector solutions, i.e., determining how much the wind is affecting one's speed and course.
The schedule system monitors what and when aircraft will be available on particular routes, and their internal configuration. Inventory data is imported and maintained from the schedule distribution system. Changes to aircraft availability would immediately impact the available seats of the fleet, as well as the seats which had been sold.
The related term flight time is defined by ICAO (International Civil Aviation Organization) as "The total time from the moment an aeroplane first moves for the purpose of taking off until the moment it finally comes to rest at the end of the flight", and is referred to colloquially as "blocks to blocks" or "chocks to chocks" time. [1]
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The estimated time of arrival (ETA) is the time when a ship, vehicle, aircraft, cargo, person, or emergency service is expected to arrive at a certain place. [ 1 ] [ 2 ] [ 3 ] Overview