aeroman444
Posts: 63
Joined: Wed Jul 12, 2006 2:27 am

777-200ER Typical Cruise Altitude For Long Range

Thu Aug 30, 2007 12:14 am

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
 
futurecaptain
Posts: 1918
Joined: Sat Sep 09, 2006 1:54 am

RE: 777-200ER Typical Cruise Altitude For Long Range

Thu Aug 30, 2007 12:22 am

Looking at FlightAware (I know, I know, not the most reliable source) I see all altitudes between FL300 and FL400.
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musapapaya
Posts: 991
Joined: Mon Apr 05, 2004 10:02 am

RE: 777-200ER Typical Cruise Altitude For Long Range

Thu Aug 30, 2007 12:43 am

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
 
BA777ER236
Posts: 170
Joined: Wed Sep 27, 2006 1:18 am

RE: 777-200ER Typical Cruise Altitude For Long Range

Thu Aug 30, 2007 1:17 am

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
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musapapaya
Posts: 991
Joined: Mon Apr 05, 2004 10:02 am

RE: 777-200ER Typical Cruise Altitude For Long Range

Thu Aug 30, 2007 6:22 am

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
 
BA777ER236
Posts: 170
Joined: Wed Sep 27, 2006 1:18 am

RE: 777-200ER Typical Cruise Altitude For Long Range

Fri Aug 31, 2007 2:17 pm

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
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