Pilot1113
Topic Author
Posts: 2276
Joined: Thu Aug 05, 1999 1:42 pm

Atlantic Tracks

Mon Apr 29, 2002 2:52 am

Why do they float the Atlantic tracks? I learned this last year and I have since forgotten the reason.

Is it because of winds and fuel economy?

Thanks!

Neil Harrison
 
744rules
Posts: 391
Joined: Sat Mar 30, 2002 3:34 am

RE: Atlantic Tracks

Mon Apr 29, 2002 3:48 am

i do not know for sure, but it sounds logic that for westbound flts jetstream is avoided and for eastbound flts they try to get benefit of it
 
donder10
Posts: 6944
Joined: Sun Oct 21, 2001 5:29 am

RE: Atlantic Tracks

Mon Apr 29, 2002 4:58 am

To get the most advantage out of the winds on that particualr day.They can vary wildly from day to day literally.
 
Rick767
Posts: 2613
Joined: Sun Jan 30, 2000 8:11 pm

RE: Atlantic Tracks

Mon Apr 29, 2002 5:22 am

Absolutely correct. Tracks are agreed in the morning by Oceanic Controllers at Shannon, avoiding the stong westerly jetstreams which move from day to day and season to season.

In the evening Gander organise the eastbound track system, but in this case attempting to take advantage of the strong easterly winds to reduce flight times to Europe.

Often an actual ground distance many hundreds of miles further than the shortest track will result in a shorter flight time due to these strong winds.

I have operated flights from the UK to Florida on tracks ranging from about 51 North to 59 North, just to avoid the jetstream wherever it may be on the day. In fact the quickest (ground) distance on such a route would be following a track along about the 52 degree latitides.

Similarly on the way home have gone up to about 59 North to catch tailwinds winds of up to 200 mph. Bumpy ride through the night sometimes I can tell you.
I used to love the smell of Jet-A in the morning...
 
Pilot1113
Topic Author
Posts: 2276
Joined: Thu Aug 05, 1999 1:42 pm

RE: Atlantic Tracks

Mon Apr 29, 2002 6:37 am

Thanks a lot guys!

- Neil Harrison
 
donder10
Posts: 6944
Joined: Sun Oct 21, 2001 5:29 am

RE: Atlantic Tracks

Mon Apr 29, 2002 8:20 am

Rick767,
where do you do SECAL checks with?Gander I guess?
Thanks,Alex
 
Pilot1113
Topic Author
Posts: 2276
Joined: Thu Aug 05, 1999 1:42 pm

Thanks Rick!

Mon Apr 29, 2002 12:12 pm

I've been watching these threads lately, in this specific forum, and I think it's about time I added you to my "Respected Users" list.

Thanks Rick! Congradulations!  Big thumbs up

- Neil Harrison
 
Rick767
Posts: 2613
Joined: Sun Jan 30, 2000 8:11 pm

RE: Atlantic Tracks

Mon Apr 29, 2002 5:34 pm

Neil,

Well I'm pleased to know that my ramblings are of use to someone!! Thanks very much.

Alex,

In the North Atlantic, SELCAL 'transmissions' are received from Shanwick (up to 30W) then Gander (west of 30W). On the more Southerly flights (e.g. Barbados) there is also Santa Maria (up to 40W I think) and then New York Oceanic.
I used to love the smell of Jet-A in the morning...

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