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777-200ER Typical Cruise Altitude For Long Range  
User currently offlineAeroman444 From United States of America, joined Jul 2006, 65 posts, RR: 0
Posted (6 years 7 months 3 weeks 5 days 14 hours ago) and read 8375 times:

Can anyone provide what the typical cruise altitude for the 777-200ER is? I believe that max certiifed ceiling is 43K, but above 40K you need one crew member on ox at all times.

Thanks

5 replies: All unread, jump to last
 
User currently offlineFuturecaptain From , joined Dec 1969, posts, RR:
Reply 1, posted (6 years 7 months 3 weeks 5 days 14 hours ago) and read 8375 times:

Looking at FlightAware (I know, I know, not the most reliable source) I see all altitudes between FL300 and FL400.

User currently offlineMusapapaya From United Kingdom, joined Apr 2004, 1054 posts, RR: 0
Reply 2, posted (6 years 7 months 3 weeks 5 days 13 hours ago) and read 8365 times:

If they are on the first few hours of the journey they tend to stay at the low FL300s and after burning off some fuel it could be somewhere close to FL400.

This applies to all the long range heavies.



Lufthansa Group of Airlines
User currently offlineBA777ER236 From United Kingdom, joined Sep 2006, 278 posts, RR: 8
Reply 3, posted (6 years 7 months 3 weeks 5 days 13 hours ago) and read 8345 times:

Quoting Aeroman444 (Thread starter):
I believe that max certified ceiling is 43K, but above 40K you need one crew member on ox at all times.

Yes, the max certified pressure altitude is 43,100ft, but I don't know where you get the oxygen bit from. There are no crew oxygen usage requirements above 40,000ft (on British registered 777s).

Our only limitation is, if the crew oxygen system is unserviceable, then the max ceiling is FL400, and then, above FL350, the handling pilot must use a portable oxygen set.

Quoting Musapapaya (Reply 2):
If they are on the first few hours of the journey they tend to stay at the low FL300s and after burning off some fuel it could be somewhere close to FL400.

In general, I would agree with this statement, but we seem to be able to get up to and above FL350 before most other 'heavies' at an equivalent % weight.

Cheers
 Smile



Flying would be easy if it wasn't for the ground
User currently offlineMusapapaya From United Kingdom, joined Apr 2004, 1054 posts, RR: 0
Reply 4, posted (6 years 7 months 3 weeks 5 days 8 hours ago) and read 8277 times:

Quoting BA777ER236 (Reply 3):
In general, I would agree with this statement, but we seem to be able to get up to and above FL350 before most other 'heavies' at an equivalent % weight.

Mine was just a general statement, however can you explain why your airline can get up to and above FL350 before most other 'heavies' at an equivalent % weight? Or are you refering to the 777 in general?



Lufthansa Group of Airlines
User currently offlineBA777ER236 From United Kingdom, joined Sep 2006, 278 posts, RR: 8
Reply 5, posted (6 years 7 months 3 weeks 4 days ago) and read 8143 times:

Quoting Musapapaya (Reply 4):
however can you explain why your airline can get up to and above FL350 before most other 'heavies' at an equivalent % weight? Or are you refering to the 777 in general?

I was referring to the 777 in general.

Cheers
 Smile



Flying would be easy if it wasn't for the ground
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