Boeing727
Topic Author
Posts: 813
Joined: Sat May 22, 1999 1:32 am

Airport Elevation...

Fri Mar 03, 2000 1:52 am

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

Thanks
Boeing727
 
xxzz123
Posts: 47
Joined: Fri Mar 03, 2000 12:58 am

RE: Airport Elevation...

Fri Mar 03, 2000 3:26 am

Mexico City has to be one of the highest international airports (if not the highest) in the world at Elevation: 7341 feet MSL
Bilbo
 
OPNLguy
Posts: 11191
Joined: Tue Jun 15, 1999 11:29 am

RE: Airport Elevation...

Fri Mar 03, 2000 4:00 am

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.
ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
 
BigO
Posts: 99
Joined: Fri Nov 19, 1999 11:22 am

RE: Airport Elevation...

Fri Mar 03, 2000 4:01 am

Lake Tahoe is at 6264 feet.
 
timz
Posts: 6084
Joined: Fri Sep 17, 1999 7:43 am

RE: Airport Elevation...

Fri Mar 03, 2000 7:42 am

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.
 
BryanG
Posts: 955
Joined: Tue May 18, 1999 2:59 am

RE: Airport Elevation...

Fri Mar 03, 2000 12:40 pm

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!
 
timz
Posts: 6084
Joined: Fri Sep 17, 1999 7:43 am

RE: Airport Elevation...

Sat Mar 04, 2000 6:23 am

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.
 
timz
Posts: 6084
Joined: Fri Sep 17, 1999 7:43 am

El Alto

Sat Mar 04, 2000 9:42 am

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

RE: Airport Elevation...

Sun Mar 05, 2000 1:10 am

I remember hearing about some side effects of high elevation on take offs/landing. What is it?
 
WorldTraveller
Posts: 594
Joined: Sun Jun 06, 1999 3:47 am

"Lowest" Airport

Sun Mar 05, 2000 5:13 am

Hi, the lowest airport is Amsterdam in the Netherlands.

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

Regards,
the WorldTraveller
 
timz
Posts: 6084
Joined: Fri Sep 17, 1999 7:43 am

727 Claim

Mon Mar 06, 2000 7:03 am

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).
 
fr8tdog
Posts: 120
Joined: Wed Feb 16, 2000 4:25 pm

RE: Airport Elevation...

Mon Mar 06, 2000 5:00 pm

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
 
Guest

Rockets On A Mexicana 727!

Mon Mar 06, 2000 5:50 pm

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.

Who is online

Users browsing this forum: AA777223, admdavid, AVENSAB727, Baidu [Spider], BDABOY, Boeing778X, Delta777Jet, EasternA300, exunited, hkcanadaexpat, jtwillia, klkla, Majestic-12 [Bot], oly720man, scbriml, SEPilot, Tedd, TUSAA, TWA772LR, usairways85, wnflyguy, xieym, Yahoo [Bot] and 368 guests