Questions tagged [polar]

Use for questions about aircraft flying in or over the Earth's northern or southern polar regions, and the special operational considerations when doing so.

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9
votes
1answer
655 views

What clues would have indicated KAL 902 was off course?

Korean Airlines Flight 902 was shot down by a Soviet fighter in April 1978 after the pilot turned through 150 degrees and entered Russian airspace. The New York Times reported it happened around 8.30 ...
40
votes
2answers
12k views

Can commercial airliners fly over central Antarctica during winter?

For example, if an airline decided they wanted to run year round flights on the great circle from Perth to Buenos Aires with a commercial airliner (e.g. A380 or B747), would they be able to do so? Or ...
11
votes
1answer
1k views

What permissions or approval are needed to land in Antarctica?

Can I land at Jack F. Paulus Skiway (NZSP) with just an ATC clearance? Or do I need to ask some other authority before I fly there? Are there any regulations regarding 'landing rights' in Antarctica? ...
26
votes
2answers
4k views

Do airlines have contingency plans to keep passengers warm in the event of an Arctic emergency landing (or otherwise a diversion)?

Imagine you're flying to Los Angeles in February, but find yourself landing in Iqaluit instead, with a daily mean of −27.5°C, without considering the effect of wind. Even walking from the cabin to a ...
15
votes
2answers
64k views

Do any flights go over the South Pole?

Are there any flights that go over the South Pole, or any that have? I'm not interested in flights over the edges of Antarctica, I'm asking about crossing right over the Pole. Are there any problems ...
18
votes
1answer
2k views

What's required for a plane certified to fly to Antarctica?

What special features besides the obvious long range does a plane have to have to fly to and land in Antarctica? I know not just any plane can make the trip, but I couldn't find many relevant ...
2
votes
1answer
953 views

How dangerous are Polar Routes, if an aircraft must land on water or wild land? [closed]

Should an emergency landing be necessary for a commercial aircraft on a Polar Route on water or in the unoccupied, secluded Arctic outback (e.g. Siberia, Far Northern Canada). What is the time ...
5
votes
2answers
656 views

Do airliners adjust altitude for latitude?

According to this NASA article, the troposphere extends from about 5 miles at the poles to about 9 miles at the equator. Though the height of the troposphere is defined by the height of the tropopause ...
7
votes
0answers
63 views

What is a grid course? [duplicate]

Reviewing the ILS 7 approach at Barrow (PABR) revealed something I have never seen before: Now, I saw the note (and diagram) in the upper left corner, so I was able to infer that this is a "grid ...
3
votes
1answer
603 views

How can I calculate polar curve?

I recently got the polar curve of an aircraft with the method of Anderson. But this method is too old. Does someone know a recent method for the polar curve without using CFD?
24
votes
3answers
52k views

Why does “no aircraft cross directly over the pole”?

This is from the last paragraph here: ... no aircraft crosses directly over the pole – the closest route is 60 nautical miles (nm) away. User Michael Shen of York University asked this ...
4
votes
3answers
1k views

How to find polar curves of airliners?

The pilots operating manual of our Cessna 182 contains the lift-versus-alpha and lift-versus-drag data of the airplane, so I assume this is data that should be publicly available. Is there a ...