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Longer Flights In Winter

Wed Sep 06, 2000 12:30 am


Hello folks,

since some flights are said to be longer in winter schedules compared to summer schedules (15-20 minz), is this because of possible delays due to Ice, De-icing, ... ??

B737-700
 
ake0404ar
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Joined: Wed May 24, 2000 10:55 am

RE: Longer Flights In Winter

Wed Sep 06, 2000 1:15 am

Just an idea;

It could also be due to strong head winds over the atlantic.
Westbound traffic is always trying to avoid the jetstream and eastbound traffic is taking advantage.
I flew SQ 744 on Dec 24th JFK - FRA 5 hrs and 20 min. ( tail winds up to 180kts )
the return leg was 8.40 min we went way up north to avoid the jet stream.

Regards
Vasco

 
B727-200
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RE: Longer Flights In Winter

Wed Sep 06, 2000 3:23 am


Jetstream winds are a factor throughout all temporate zones of the earth during the respective winter months (usually somewhere between about 30-50 degrees both Northern and Southern Hemispheres). Winds can exceed 200kts quite regularly. In the Southern Hemisphere the strongest winds are in September/October.

B727-200.
 
ScottB
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RE: Longer Flights In Winter

Wed Sep 06, 2000 3:33 am

The jetstream winds are definitely a factor in the United States. The flight from Boston to Houston is normally a bit under four hours, but I was once on a flight during November which was over five hours - in an MD-80, at that. I couldn't wait to get out of that plane!

Whenever the weather is cold in Houston, I know to expect a long flight from Boston.

 
cba
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RE: Longer Flights In Winter

Wed Sep 06, 2000 6:34 am

Is the Concorde effected by any of these winds? I know that it travels at about 60,000 feet. Do they have winds at that altitude?
 
ake0404ar
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RE: Longer Flights In Winter

Wed Sep 06, 2000 6:43 am

What I heard about flying up there, you don't even have any disturbance like turbulence etc.....I am not too sure about the wind though.
They probably still have winds up there as the record for NYC - LHR is set at 2 hrs and 52mins and wind must have helped to establish that record.

Regards
Vasco Garcia
 
Guest

RE: Longer Flights In Winter

Wed Sep 06, 2000 7:35 am

How do airlines predict jetstreams and flying times? I just booked a RT BOS-SFO SJC-BOS around Xmas, and the westbound is scheduled for 7 hrs, while the eastbound is 5 hrs 20 mins. I checked on the flight schedule, and the BOS-SFO run is only 6:30 or so before Dec. 15 and after Jan. 25 or something like that. Are they beefing up flight times to accomodate the holiday rush? Or do they think the jetstream will be especially strong from mid-Dec to late Jan?
 
Guest

RE: Raddog2

Wed Sep 06, 2000 10:28 am


That would also be exactly my question.
It's only in the winter schedule a while longer.

Can anybody help ???
 
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Bruce
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RE: Longer Flights In Winter

Wed Sep 06, 2000 10:26 pm

Are you serious? 200kt winds at the flight level???

If that were on the ground it would be a major hurricane!!!!!!!!!!!
Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
 
AFa340-300E
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Longer Flights In Winter: Concorde

Wed Sep 06, 2000 10:30 pm

Hello,

The Concorde indeed suffers less than other aircraft from the headwinds, but still when it makes its approach at JFK, it has to decrease its altittude and "meets" them.

Sometimes in winter the crew has to study well its planned route, if they don't want to have to make an enroute stop-over.

Best regards,
Alain Mengus