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Abood07017

ETOPS

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Latest was 330 for Air new Zealand, I can see on wikipedia there is a mention for 370 as well but not specify if this is for a 777.

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I dont remember the source but this is what i found on net.

 

Etops distance and time b777

 

WEIGHT TIME(min)
(kg)       |   60   75   90 120   138    180   207   240  270   300   330
----------------------------------------------------------
360000 | 425 529 632 839   963  1252 1438 1665 1872 2079 2285
320000 | 439 545 652 865   993  1291 1483 1718 1931 2144 2357
280000 | 450 559 668 885 1016 1321 1517 1757 1974 2192 2410
240000 | 462 574 686 910 1044 1358 1559 1806 2030 2254 2478
200000 | 472 587 702 933 1071 1393 1600 1853 2083 2313 2543
160000 | 477 595 712 946 1086 1414 1625 1883 2117 2351 2585

 

 

Emirates ETOPS

At Emirates for example, the 60 minute distance is  420nm. ETOPS 180: 1260nm and ETOPS 207: 1449nm.

 

At Cathay Pacific, 60 minute distance is 456nm. ETOPS 180: 1313nm and ETOPS 207: 1506nm.

 

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5 hours ago, Abood07017 said:

I just have one question: what is the maximum distance/time for ETOPS for the 777?

Depends on the aircraft and on the operator.

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2 hours ago, ashun said:

I dont remember the source but this is what i found on net.

 

Etops distance and time b777

 

WEIGHT TIME(min)
(kg)       |   60   75   90 120   138    180   207   240  270   300   330
----------------------------------------------------------
360000 | 425 529 632 839   963  1252 1438 1665 1872 2079 2285
320000 | 439 545 652 865   993  1291 1483 1718 1931 2144 2357
280000 | 450 559 668 885 1016 1321 1517 1757 1974 2192 2410
240000 | 462 574 686 910 1044 1358 1559 1806 2030 2254 2478
200000 | 472 587 702 933 1071 1393 1600 1853 2083 2313 2543
160000 | 477 595 712 946 1086 1414 1625 1883 2117 2351 2585

 

 

Emirates ETOPS

At Emirates for example, the 60 minute distance is  420nm. ETOPS 180: 1260nm and ETOPS 207: 1449nm.

 

At Cathay Pacific, 60 minute distance is 456nm. ETOPS 180: 1313nm and ETOPS 207: 1506nm.

 

The table is handy however there's a difference between what an aircraft is capable of and what it is rated to. A 777 may well be able to fly single engine for 330 minutes and can get that ETOPS rating, however airlines aren't going to certify an aircraft to 330 minutes if it will only ever fly 100 minutes from the nearest airport. ETOPS certification is not cheap, and the higher the certification, the more rigorous the maintenance and regulation goes, thus a much higher cost. Airlines rate aircraft to what they need. 

For example, Air New Zealand might need the full 330 min certification for certain hops to North America, but Air France might only need 180 at best.

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