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Airport Elevation...  
User currently offlineBoeing727 From United States of America, joined May 1999, 951 posts, RR: 0
Posted (14 years 4 months 2 weeks 1 day 9 hours ago) and read 1232 times:

What is the highest elevation of an airport in the US/World???

Thanks
Boeing727

12 replies: All unread, jump to last
 
User currently offlineXxzz123 From United Kingdom, joined Mar 2000, 48 posts, RR: 0
Reply 1, posted (14 years 4 months 2 weeks 1 day 7 hours ago) and read 1115 times:

Mexico City has to be one of the highest international airports (if not the highest) in the world at Elevation: 7341 feet MSL


Bilbo
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 2, posted (14 years 4 months 2 weeks 1 day 7 hours ago) and read 1110 times:

In the USA, Leadville, CO is 9927 MSL.

Elsewhere, Quito Equador is 14,000+ if I recall correctly. There's another place over in Tibet that's pretty high, but I can't remember how it compares with Quito.


User currently offlineBigO From United States of America, joined Nov 1999, 109 posts, RR: 0
Reply 3, posted (14 years 4 months 2 weeks 1 day 6 hours ago) and read 1106 times:

Lake Tahoe is at 6264 feet.

User currently offlineTimz From United States of America, joined Sep 1999, 6750 posts, RR: 7
Reply 4, posted (14 years 4 months 2 weeks 1 day 3 hours ago) and read 1094 times:

According to landings.com Lhasa is only 11975 ft, but I too seem to recall a 14000-ft airport in Tibet.
Quito is about 9220 ft; La Paz, Bolivia is just over 13300.


User currently offlineBryanG From United States of America, joined May 1999, 431 posts, RR: 0
Reply 5, posted (14 years 4 months 2 weeks 22 hours ago) and read 1088 times:

This is a quote about the 727 from the Boeing website:

"First jetliner to prove it could operate -- even with one engine out -- from Bogata, Colombia (8,355-foot elevation), Cuzco, Peru (10,800-foot elevation), and LaPaz, Bolivia (13,358-foot elevation). No jet had operated at any of these airports before."


Where in South America is "El Alto" airport? I've heard that name before as being one of the highest but I forgot where it is. I heard that after some prop planes takeoff, they're actually cleared to a LOWER cruising altitude!


User currently offlineTimz From United States of America, joined Sep 1999, 6750 posts, RR: 7
Reply 6, posted (14 years 4 months 2 weeks 4 hours ago) and read 1077 times:

It appears the elevation that landings.com gives for Lhasa is for the city, not the airport; the ONC chart shows 14,000+ ft at the airport. Wonder how heavy those China Southwest A340's are when they take off.

User currently offlineTimz From United States of America, joined Sep 1999, 6750 posts, RR: 7
Reply 7, posted (14 years 4 months 2 weeks 1 hour ago) and read 1073 times:

It seems "El Alto" is another name for the airport at La Paz.

User currently offlineJaemz From , joined Dec 1969, posts, RR:
Reply 8, posted (14 years 4 months 1 week 6 days 9 hours ago) and read 1064 times:

I remember hearing about some side effects of high elevation on take offs/landing. What is it?

User currently offlineWorldTraveller From Germany, joined Jun 1999, 624 posts, RR: 5
Reply 9, posted (14 years 4 months 1 week 6 days 5 hours ago) and read 1062 times:

Hi, the lowest airport is Amsterdam in the Netherlands.

It's about two meters or 6 foot below sea level.

Regards,
the WorldTraveller


User currently offlineTimz From United States of America, joined Sep 1999, 6750 posts, RR: 7
Reply 10, posted (14 years 4 months 1 week 5 days 3 hours ago) and read 1050 times:

If you can't trust Boeing who can you trust? But Braniff was flying their 707-227's out of Bogota at least as early as 1961, and by 1963 Avianca was flying 720B's nonstop Bogota to New York (a 2473-st-mile trip).

User currently offlineFR8TDOG From United States of America, joined Feb 2000, 120 posts, RR: 0
Reply 11, posted (14 years 4 months 1 week 4 days 17 hours ago) and read 1045 times:

High altitude airports pose several problems with aircraft performance. Temp, humidity and pressure effect what we call density altitude. Most notably the temp is the overwhelming factor. If the tempeture is above ISA, the density altitude increases and the aircraft behaves as if it were at an higher altitude. As we go higher the air molecules are farther apart which means the air craft has to travel faster (true airspeed) in order to gain the same lift, as if it where departing at a lower altitude. In other words if two aircraft, one at S.L. at ISA and the other at 10,000' ISA, rotate at 100kts (indicated airspeed and no wind components) the one at sea level would be actually traveling closer to 100kts of ground speed. The aircraft at 10000' would have to travel faster (approx 2-3% per 1000' increase in altitude) in order to achieve 100kts of indicated airspeed(packing the same amount of molecules of air in the Pitot tube) so what happens is that you have to have longer runways for higher take off and landing speeds, climb performance is decreased and true airspeed is increased

User currently offlineBoeing 777 From , joined Dec 1969, posts, RR:
Reply 12, posted (14 years 4 months 1 week 4 days 17 hours ago) and read 1042 times:

That's interesting, FR8TDOG! Here's another. I recall seeing a picture in a book some time ago of a Mexicana 727 having rockets in the rear to help it take off due to the altitude at Mexico City's Benito Juarez International airport. (at 7314' ASL.) That's right - rockets! But the rockets didn't last long. They were not only noisy - they polluted and caused big-time vibrations on these planes. Would've been pretty interesting to see and hear a rocket-assisted takeoff! (but not too close and not too often!!)

I don't know of any other airline having used rocket-assisted takeoffs for hot and high conditions, although I've come across some older US military planes in the past having used rockets. I wouldn't be surprised if the Russians and the Chinese might have something like that, as there can be high-altitude airports in the Caucasus Mountains (Georgia and Azerbaijan) and the former Soviet republics of Tajikistan and Kyrgystan. Tibet, of course, has very high-altitude airports. And probably Xinjiang province in western China, too.



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