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MD-80 Take Off At 109 Degrees F  
User currently offlineTAN FLYR From United States of America, joined Aug 2000, 1983 posts, RR: 0
Posted (6 years 10 months 2 weeks 1 day 7 hours ago) and read 6574 times:

My son was wondering, and thus myself, how much runway, on average, this afternoon at FAT where it is 109 degrees would a full MD80 to DFW need for take off?

FAT is 336 ft above sea level.


4 replies: All unread, jump to last
User currently offlineAjd1992 From , joined Dec 1969, posts, RR:
Reply 1, posted (6 years 10 months 2 weeks 18 hours ago) and read 6411 times:

It would depend on weight and other weather conditions, so it's somewhat hard to say otherwise.

User currently offlineElpinDAB From United States of America, joined Apr 2005, 489 posts, RR: 3
Reply 2, posted (6 years 10 months 2 weeks 12 hours ago) and read 6302 times:

FAT's longest runway is 9200ft, so on a 109F day, it wouldn't be able to leave at max takeoff weight. That would require almost 10,000ft.

User currently offlineHodyOaten From United States of America, joined Jul 2009, 17 posts, RR: 0
Reply 3, posted (6 years 10 months 2 weeks 10 hours ago) and read 6259 times:

I took a look at this link:
http://www.boeing.com/commercial/airports/acaps/md80sec3.pdf (PDF)

It shows that for the MD-88 at MTOW at near-sea level, runway requirement is 7700 ft, increasing to 8000 ft at ISA + 15 deg C. Not much of an increase, so I suppose at 109 degrees it would be 9000 ft or so. Of course this is just a guess as I don't have access to manuals; I'm not sure if those documents are authoritative. Looks like the real penalties kick in with higher elevations.

User currently offlineAAR90 From United States of America, joined Jan 2000, 3589 posts, RR: 44
Reply 4, posted (6 years 10 months 1 week 6 days 10 hours ago) and read 5973 times:

Not sure about runway required; however AA's Takeoff Planning System (at least the version available to pilots) converts everything to Gross Weights since that is the only real variable we can control. AA flight 420/20July FAT-DFW had a 155,200 lbs weight limit due to environmental conditions at FAT [primarily due to runway length/terrain & temp.]. Load Control placed max 140 pax limit and max 3,400lbs cargo limit upon that flight.

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