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Atlantic Tracks  
User currently offlinePilot1113 From United States of America, joined Aug 1999, 2333 posts, RR: 12
Posted (11 years 11 months 3 weeks 5 days 6 hours ago) and read 1179 times:

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

7 replies: All unread, jump to last
 
User currently offline744rules From Belgium, joined Mar 2002, 407 posts, RR: 0
Reply 1, posted (11 years 11 months 3 weeks 5 days 5 hours ago) and read 1141 times:

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

User currently offlineDonder10 From Canada, joined Oct 2001, 6659 posts, RR: 22
Reply 2, posted (11 years 11 months 3 weeks 5 days 3 hours ago) and read 1125 times:

To get the most advantage out of the winds on that particualr day.They can vary wildly from day to day literally.

User currently offlineRick767 From United Kingdom, joined Jan 2000, 2662 posts, RR: 51
Reply 3, posted (11 years 11 months 3 weeks 5 days 3 hours ago) and read 1116 times:

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...
User currently offlinePilot1113 From United States of America, joined Aug 1999, 2333 posts, RR: 12
Reply 4, posted (11 years 11 months 3 weeks 5 days 2 hours ago) and read 1098 times:

Thanks a lot guys!

- Neil Harrison


User currently offlineDonder10 From Canada, joined Oct 2001, 6659 posts, RR: 22
Reply 5, posted (11 years 11 months 3 weeks 5 days ago) and read 1093 times:

Rick767,
where do you do SECAL checks with?Gander I guess?
Thanks,Alex


User currently offlinePilot1113 From United States of America, joined Aug 1999, 2333 posts, RR: 12
Reply 6, posted (11 years 11 months 3 weeks 4 days 20 hours ago) and read 1062 times:

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


User currently offlineRick767 From United Kingdom, joined Jan 2000, 2662 posts, RR: 51
Reply 7, posted (11 years 11 months 3 weeks 4 days 15 hours ago) and read 1057 times:

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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