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Some are flying mostly for the cargo they transport, so the seats aren't very full. And then indeed they would take Canadians (or Americans flying via Canada) t
by t0mas88 7y ago
Some are flying mostly for the cargo they transport, so the seats aren't very full. And then indeed they would take Canadians (or Americans flying via Canada) that want to go home. Cargo is also medical equipment etc that is really necessary in other places.
If you look at a flight-tracking site you'll notice Atlantic crossings starting at FL380 or even higher, for example now BA287 is at 40,000ft just coasting out in Ireland. That's not the normal altitude, typically we enter Oceanic airspace with an initial altitude of 35,000 or something similar with maximum possible (but not efficient) being 36ish.
- sleepychu 7y agoIs the implication that in this weight config (just cargo and empty seats) it is efficient to fly at 40,000ft?
- deleted 7y ago[deleted]
- Robotbeat 7y agoYeah. For a given speed, a lower weight (with the same outer shape) means you need to fly at a higher altitude (where the air is less dense) to reach an optimal lift to drag ratio.
- t0mas88 7y agoYes, entering Oceanic you basically tell them: "Request track Delta, Flight level 350, Able 370, second choice track Charly" Translation: I want this route, the best altitude for me is 35,000 ft and at my current weight the maximum I can climb to is 37,000 ft. That optimum altitude is calculated by the flight management system.