LY777
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LAX-CDG Route Planning

Thu Sep 22, 2011 9:31 am

Why do CDG flights to LAX (or vice-cersa) often fly over Greenland, ie a "Polar" route.
I know this is to save time (shorter route), but when the route is sometimes more to the South, the flight is finally not longer.
Your thoughts?
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wilco737
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LAX-CDG Route Planning

Thu Sep 22, 2011 9:34 am

Quoting LY777 (Thread starter):

It is all about wind. Over the north atlantic you have strong jetstreams. On the westbound part you fly against the wind, so you fly a detour to avoid the headwinds, but the flight is still shorter (flight time wise). The distance maybe longer, but the shorter the flight time, the less fuel you use.
On the eastbound flight you want to use the strong winds as tailwinds, so you fly a route where you have strong tailwinds. Make the flight shorter (flight time wise)... So a detour in aviation can mean reducing flight time - because of the winds.

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LY777
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LAX-CDG Route Planning

Thu Sep 22, 2011 10:14 am

Thanks, interesting.
So, CDG-LAX route is "Polar" whereas LAX-CDG is "Regular"
So, the "Polar" route is longer (in term of distance). How much longer compared to the "regular" route?
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wilco737
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LAX-CDG Route Planning

Thu Sep 22, 2011 10:17 am

Quoting LY777 (Reply 2):
So, CDG-LAX route is "Polar" whereas LAX-CDG is "Regular"

I wouldn't call it polar route. It is further to the north. Polar is when you are very close to the North Pole.

You cannot say in general how much longer it will be. It depends on the wind. So it changes everyday again.

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LY777
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LAX-CDG Route Planning

Thu Sep 22, 2011 10:21 am

Thanks Wilco for the info!
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NZ107
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LAX-CDG Route Planning

Thu Sep 22, 2011 10:55 am

To actually fly over the North Pole, you'd have to find a flight like DXB-SFO/LAX and be lucky. My friend flew DXB-LAX and the captain announced that they flew within 3 miles of the North Pole.

[Edited 2011-09-22 03:56:08]
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wilco737
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LAX-CDG Route Planning

Thu Sep 22, 2011 10:58 am

Quoting NZ107 (Reply 5):
To actually fly over the North Pole,

Yes. Or like LH Cargo did from Germany or GOT to FAI. They usually flew close or over the North Pole.

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leftyboarder
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LAX-CDG Route Planning

Thu Sep 22, 2011 10:59 am

According to FAA, a route is polar if it is north of 78 degrees north. Since that is further north of almost anywhere in N. America or even Greenland, I doubt AF ventures into this territory. In fact, are there any polar routes from Europe to N. America? Did the SVO-SEA flight go that north?
 
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NZ107
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LAX-CDG Route Planning

Thu Sep 22, 2011 11:06 am

Quoting wilco737 (Reply 6):
Yes. Or like LH Cargo did from Germany or GOT to FAI. They usually flew close or over the North Pole.

Unfortunately, a lot of us here won't have a chance to fly LH Cargo!  
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wilco737
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LAX-CDG Route Planning

Thu Sep 22, 2011 11:08 am

Quoting NZ107 (Reply 8):
Unfortunately, a lot of us here won't have a chance to fly LH Cargo!  

True. And these days they don't fly to FAI anymore, so they don't use the polar route anymore anyway. But leftyboarder asked:

Quoting leftyboarder (Reply 7):
In fact, are there any polar routes from Europe to N. America?

So I said that LH cargo used to... But not anymore.

My furthest north was 76°N on a flight from FRA to SEA due to the strong headwinds.

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blueflyer
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RE: LAX-CDG Route Planning

Thu Sep 22, 2011 3:10 pm

Quoting leftyboarder (Reply 7):
In fact, are there any polar routes from Europe to N. America?

If it isn't a polar route, Condor's FRA-ANC has to come very close.
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bonusonus
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RE: LAX-CDG Route Planning

Thu Sep 22, 2011 8:14 pm

Quoting leftyboarder (Reply 7):
In fact, are there any polar routes from Europe to N. America?

Expanding on this, what are the main polar passenger routes?

DXB-LAX/SFO was mentioned.

Also, are there any that go this close to the south pole? I know that is ETOPS no-go zone, but could a quad do it?
 
wilco737
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RE: LAX-CDG Route Planning

Thu Sep 22, 2011 8:35 pm

Quoting bonusonus (Reply 11):
Also, are there any that go this close to the south pole? I know that is ETOPS no-go zone, but could a quad do it?

The flight SYD-EZE is flown by 744 and goes rather far south... But not near the South Pole:

http://www.gcmap.com/mapui?P=syd-eze&MS=wls&DU=mi

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Viscount724
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RE: LAX-CDG Route Planning

Thu Sep 22, 2011 10:59 pm

Quoting blueflyer (Reply 10):
Quoting leftyboarder (Reply 7):
In fact, are there any polar routes from Europe to N. America?

If it isn't a polar route, Condor's FRA-ANC has to come very close.

If they use the great circle route, the closest point to the Pole is about 400 nm.
 
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Starlionblue
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RE: LAX-CDG Route Planning

Thu Sep 22, 2011 11:10 pm

Quoting bonusonus (Reply 11):
Expanding on this, what are the main polar passenger routes?

DXB-LAX/SFO was mentioned.

JFK-HKG. You typically fly straight north from JFK, skirt the actual pole, then straight south to HKG.

EWR-SIN.

Quoting bonusonus (Reply 11):
Also, are there any that go this close to the south pole? I know that is ETOPS no-go zone, but could a quad do it?

There aren't really any "south polar routes" because the geography of the destinations doesn't require it.
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sunrisevalley
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RE: LAX-CDG Route Planning

Tue Sep 27, 2011 2:23 pm

Quoting Starlionblue (Reply 14):
There aren't really any "south polar routes" because the geography of the destinations doesn't require it.

also there are no alternate landing facilities

and

Quoting wilco737 (Reply 12):
?

The flight SYD-EZE is flown by 744 and goes rather far south... But not near the South Pole:

I believe the Australian regulator does not allow flights south of 60 degrees although I saw a flight track for a SYD-EZE flight that went to about 62 degrees south.

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