Transpac787 From United States of America, joined Jul 2007, 3138 posts, RR: 14 Reply 1, posted (3 years 6 months 3 weeks 3 days 4 hours ago) and read 4875 times:
Other large airliners *can* land above max landing weight. Of course, it's only to be done in an emergency.
The 767's, for example, also can land above maximum landing weight. The fuel-dump system, if an airline has it installed, only dumps from the center tank. Or, if an airline doesn't even have it installed, you'll of course have to land overweight.
PGNCS From United States of America, joined Apr 2007, 2511 posts, RR: 45 Reply 2, posted (3 years 6 months 3 weeks 3 days 4 hours ago) and read 4849 times:
ANY airliner can land at max takeoff weight in an emergency. If landing above Max Landing Weight, there will be additional checklists and maintenance procedures to deal with. At some airports (think hot and high places) and in some aircraft in some situations there may be issues with Approach Climb Limiting Weight, but that is a very esoteric subject and is generally not terribly restrictive.
CaptSeth From United States of America, joined Jan 2008, 26 posts, RR: 0 Reply 3, posted (3 years 6 months 3 weeks 3 days 4 hours ago) and read 4759 times:
Max LDG weight on the -200's I used to fly was 198.0, on the -300's it was 224.0, both considerably below the MGTOW. A landing above those numbers would result in an overweight landing inspection prior to further flight.
As others have noted, all airliners are physically capable of doing it. You just need to do the appropriate checks afterwards. Provided it's done at a suitably low sink rate, it can be done without damage. The different across airliners is how sensitive they're going to be to landing at high sink rate...a 747 or A340 at MTOW must be treated much more gingerly than a 757.
Quoting Transpac787 (Reply 1): The 767's, for example, also can land above maximum landing weight. The fuel-dump system, if an airline has it installed, only dumps from the center tank.
Is that 767 specific? Several other models can dump from all tanks.
Western727 From United States of America, joined Jan 2007, 579 posts, RR: 4 Reply 5, posted (3 years 6 months 3 weeks 2 days 10 hours ago) and read 4243 times:
Quoting Tdscanuck (Reply 4): a 747 or A340 at MTOW must be treated much more gingerly than a 757.
Why is this so? Is it because their frames are designed for fewer cycles (thus, fewer fuselage "ribs", etc.)? Does this also mean the 747-100SR/400D can be treated less "gingerly" than their respective long-range equivalents?
BoeingFixer From Canada, joined Jul 2005, 490 posts, RR: 0 Reply 6, posted (3 years 6 months 3 weeks 2 days 10 hours ago) and read 4203 times:
Quoting Western727 (Reply 5): Why is this so? Is it because their frames are designed for fewer cycles (thus, fewer fuselage "ribs", etc.)? Does this also mean the 747-100SR/400D can be treated less "gingerly" than their respective long-range equivalents?
Mainly because the mass and inertia are quite a bit higher as gross weight increases and imparts greater stresses on the landing gear. I would also place the 747-100SR/400D in the same category.
Rwessel From United States of America, joined Jan 2007, 1988 posts, RR: 2 Reply 7, posted (3 years 6 months 3 weeks 2 days 7 hours ago) and read 4156 times:
Quoting Western727 (Reply 5): Why is this so? Is it because their frames are designed for fewer cycles (thus, fewer fuselage "ribs", etc.)?
No. For really long range aircraft the difference between MLW and MTOW can be very large.
For example, for the base 757-200, the MTOW of 220,000lbs is only 11% higher than the MLW of 198,000lbs.
But for the smallest 772, the 508,000lbs MTOW is 32% higher than the 441,000lbs MLW.
PGNCS From United States of America, joined Apr 2007, 2511 posts, RR: 45 Reply 8, posted (3 years 6 months 3 weeks 2 days 7 hours ago) and read 4153 times:
Quoting Tdscanuck (Reply 4): Quoting Transpac787 (Reply 1):
The 767's, for example, also can land above maximum landing weight. The fuel-dump system, if an airline has it installed, only dumps from the center tank.
Is that 767 specific? Several other models can dump from all tanks.
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