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How Long Between Long Haul Flights..  
User currently offlineMSYYZ From Canada, joined Oct 2005, 851 posts, RR: 8
Posted (8 years 6 months 4 weeks 19 hours ago) and read 3334 times:

I am just wondering , is there a recommendation from Airline Manufacturers regarding how long should a long-hauler stay on the ground between 2 long haul flights ? Or it depends on the Airline's operation policy ?
Another question , is it a normal procedure for Airlines to use a long-hauler on a short-haul high density route between 2 long-haul flights ?
Any answer is much appreciated .


A346,A343,A342,A332,A333,A310,A300,AB6,A319,A320,A321,B741,B744,B777,B767,B732,B735,B727,B707,B757,MD80,F-70,E-170,B738
6 replies: All unread, jump to last
 
User currently offline747LUVR From United States of America, joined Jul 2005, 394 posts, RR: 0
Reply 1, posted (8 years 6 months 4 weeks 19 hours ago) and read 3330 times:

In order to give the a/c a 'rest'?

User currently offlineJush From Germany, joined Apr 2005, 1636 posts, RR: 3
Reply 2, posted (8 years 6 months 4 weeks 18 hours ago) and read 3322 times:

Quoting 747LUVR (Reply 1):
In order to give the a/c a 'rest'?

He might mean something like engine cool down or so. Can't imagine anything else.
Can't give you any answer though only that engines are cooling down in descent already cause they're quite a long time almost idle.

Regards
jush



There is one problem with airbus. Though their products are engineering marvels they lack passion, completely.
User currently offlineMSYYZ From Canada, joined Oct 2005, 851 posts, RR: 8
Reply 3, posted (8 years 6 months 4 weeks 18 hours ago) and read 3311 times:

Quoting 747LUVR (Reply 1):
In order to give the a/c a 'rest'?

That's exactly what i mean .



A346,A343,A342,A332,A333,A310,A300,AB6,A319,A320,A321,B741,B744,B777,B767,B732,B735,B727,B707,B757,MD80,F-70,E-170,B738
User currently offlineStarlionblue From Greenland, joined Feb 2004, 17068 posts, RR: 66
Reply 4, posted (8 years 6 months 4 weeks 18 hours ago) and read 3306 times:

Quoting MSYYZ (Reply 3):
Quoting 747LUVR (Reply 1):
In order to give the a/c a 'rest'?

That's exactly what i mean .

There's really no need for a rest. That is, the requirements for fueling, catering, unloading and loading of cargo and pax will in almost all cases exceed any need for a rest. The only thing I can think of is brake cooling time, but with new carbon discs it's not a problem unless maybe you just rejected a take-off.

The other reason for a "rest" is maintenance.



"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineLTU932 From Germany, joined Jan 2006, 13864 posts, RR: 50
Reply 5, posted (8 years 6 months 4 weeks 2 hours ago) and read 3150 times:

Quoting Starlionblue (Reply 4):
The only thing I can think of is brake cooling time, but with new carbon discs it's not a problem unless maybe you just rejected a take-off.

I recall the A343 needs lots of brake cooling time, since those brakes are used up much more than the others due to the insufficient reverse thrust those CFM56 produce. Please correct me if I'm wrong on that.


User currently offlineZeke From Hong Kong, joined Dec 2006, 9151 posts, RR: 76
Reply 6, posted (8 years 6 months 4 weeks 1 hour ago) and read 3143 times:

Quoting LTU932 (Reply 5):
I recall the A343 needs lots of brake cooling time, since those brakes are used up much more than the others due to the insufficient reverse thrust those CFM56 produce. Please correct me if I'm wrong on that.

We have recorded the brake cool down times in our manuals. Can have brake temps at 500 deg 60 minutes before pushback and still will be cool enough for takeoff, they dont get anywhere near this. Outside air temperature was found to have little effect on cool down times, wind speed does.



We are addicted to our thoughts. We cannot change anything if we cannot change our thinking – Santosh Kalwar
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