Kaitak From Ireland, joined Aug 1999, 12165 posts, RR: 35 Posted (10 years 11 months 4 weeks 13 hours ago) and read 988 times:
I was just noticing that CO uses 757s on the LIS-EWR routes and since quite a few twins fly to LIS, for example TP 310s and Air Transat 330s, I was wondering what route they would use, to keep within the 138/207 minute rules? I presume they'd route out towards the Azores and then across towards Newfoundland? Anyone know? Can anyone get their hands on a route/ flight plan?
Timz From United States of America, joined Sep 1999, 6631 posts, RR: 7 Reply 4, posted (10 years 11 months 3 weeks 6 days 13 hours ago) and read 828 times:
Remember 138-minute ETOPS? Supposedly that was invented to close the last gap in that existed in the North Atlantic under 120-minute rules. As long as Lajes, Gander and Keflavik are all available no point in the Atlantic north of latitude 35 degrees is more than 820 nm from an airport.
Timz From United States of America, joined Sep 1999, 6631 posts, RR: 7 Reply 10, posted (10 years 11 months 3 weeks 5 days 14 hours ago) and read 700 times:
I was wrong about that 35-deg-latitude line in the North Atlantic-- turns out that
lat 35.94848 lon 48.76233 is 820 nm from Gander and Bermuda, and
lat 37.45680 lon 44.35652 is 820 nm from Gander and Lajes.
Also: the 138-minute rule closed the last gap in the north North Atlantic. If we consider the North Atlantic to extend all the way down to Ponta do Calcahar, then there is a small triangle that may not be covered even by 180-minute rules. Lat 24.06236 lon 42.27743 is 1172.4 nm from Lajes, Antigua and Sal.