EGGD From United Kingdom, joined Feb 2001, 12443 posts, RR: 34 Posted (12 years 7 months 6 days ago) and read 7037 times:
I assumed that ALL runways were flat, it never occured to me that they might not be. But the first time I went spotting at my home airport, I noticed there is a huge difference in elavation. The rwy27 threshold is level with the terminal area, then it dips down to about 5m below, and then rises to about 5m above, and then stays at that height until the rwy9 threshold. Doesn't sound much, but BELIEVE ME, the runway is one of the worst i've seen (you can't see an aircraft on the rwy9 threshold from the rwy27threshold).
I thought that we were a one off, but the airport closest to me (Filton), is on a camber, much like MAN's main runway, 24R/6L. Where it peaks in height in the middle. Also, BHX is much like Bristol, in fact they are pretty similar apart from EGBB's is longer.. (we are not talking about users' thingy.....nevermind).
Also, I know of Jersey, Munich, Courcheval all have runways that are by no means flat.
So how flat is the runway near you? Anyone have any strange shape ones? Is there a legal limit to how steep a runway can be?
Dripstick From Canada, joined Dec 2001, 2364 posts, RR: 21
Reply 4, posted (12 years 7 months 6 days ago) and read 6869 times:
Flat runways are fairly rare. The only seemingly "flat" strip I can recall was Amsterdam. Most terrain has slight grades to deal with. If a runway was totaly level, think of the drainage problems. Would bring a whole new meaning to the term hydroplaning.
FlightSimFreak From United States of America, joined Oct 2000, 720 posts, RR: 0
Reply 7, posted (12 years 7 months 6 days ago) and read 6836 times:
Where the GA runway crosses the big one at my airport, there is a big bump... I guess it's for drainage on the big one. Sometimes, if you're right at rotation, it can catapult you into the air... kinda fun.
Big777jet From , joined Dec 1969, posts, RR:
Reply 10, posted (12 years 7 months 5 days 22 hours ago) and read 6767 times:
Worse steep runway in the U.S.A. is Cape Newenham, Alaska. Rwy 14 elev is 230 feet and Rwy 32 elev is 541 feet almost 311 feet down the runway 34 for take off only and up the runway 14 landing only. The miss approach is inprobable!!!! Ahhhh!!! BTW, the runway is gravel at 3,950 feet length! I found the picture of airport! Here is http://www.firebirds.org/menu10/mn10_p61.htm
Gmanmn From United States of America, joined Sep 2001, 23 posts, RR: 0
Reply 11, posted (12 years 7 months 5 days 21 hours ago) and read 6750 times:
Most commercial aircraft have a limitation of + or - 2% runway slope. That is measured from threashold to threashold. This data is published in most countries aeronautical publications for the airport data. Hope this helps...
DeltaASA16 From , joined Dec 1969, posts, RR:
Reply 12, posted (12 years 7 months 5 days 20 hours ago) and read 6728 times:
I was in Alpe-Du-huez. It is a ski resort in France south east of Lyon, and the airport there is anything but flat. It is practiaclly built up the mountain. I did some spotting and the planes (single engine props) would roll over the crest of the hill and plunge down the side of the mountain and then gadually lift off the runway. The planes landed opposite. Landed while flying positive fpm!! Then would coast to the runway and tehn add power and climb upward and touchdown on the runway! It was soo cool to watch
Kind of like the airport in TOMMOROW NEVER DIES 007
KAUSpilot From United States of America, joined Jan 2002, 1959 posts, RR: 32
Reply 14, posted (12 years 7 months 5 days 20 hours ago) and read 6711 times:
There are almost no truly flat runways. Just pick up an airport facility directory, every runway has a slope grade in its information.
Galilee: The runways are humped in the middle, so the water drains off to each side. It's not a lot, but the center line of the runway might be maybe a foot higher than either edge. This is an approximation, it may be less, may be more.
GoldenShield From United States of America, joined Jan 2001, 6039 posts, RR: 14
Reply 20, posted (12 years 7 months 5 days 19 hours ago) and read 6677 times:
Catalina Island, CA, (AVX) has a BIG hill in the middle of the runway, so a/c on both sides cannot see each other. It is a 3000 foot runway that it 1000 feet MSL, with a cliff at both ends just feet from the runway. Imagine a mountain with the top chopped off.
Two all beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun.
Demoose From Canada, joined Mar 2001, 1952 posts, RR: 23
Reply 22, posted (12 years 7 months 5 days 10 hours ago) and read 6605 times:
At Manchester runway 24R/6L has a hump in the middle. I've watched aircraft take off from 6L from the far end of the runway and you can only see half the runway, then out of nowhere a jet emerges over the runway horizon and flies right over, great to watch.
Nighthawk From UK - Scotland, joined Sep 2001, 5157 posts, RR: 33
Reply 24, posted (12 years 7 months 5 days 9 hours ago) and read 6582 times:
i remember hearing that cape canaveral is the flattest runway in the world, with a difference of something like 2mm between elevation at each ends. Apparently it is so flat that it conforms to the curviture of the earth
That'll teach you
: Kai Tak was pretty damn flat, If I remember rightly... Demoose, as I said before, the main rwy does have that odd hump: http://www.planepictures.net/n
: R/W atr AMS/SPL is as flat as a dubbeltje (dime) (all 5 of them) Gr, Schreiner
: guys, its pretty odd to think that a runway would be flat you take a 10000ft long road, how flat would that be?
: Schreiner...don't you mean as flat as a euro-dime?
: I was going to ask a question about runway surfaces! On the new video Concorde: The New Era the runway at Exeter Airport that Concorde is departing fr
: Indeed, Schiphol (AMS) runways are very flat [level]. All 5 runways have less than one feet elevation difference from the beginning to the end of thw
: Depends on which end you start, PW100. It's -11 feet on the high end No using the slope of the runway to slow down here...
: here's is a picture of the shape of La Aurora's runway. The runway here in TGU is flat but it slopes downward the whole way from runway1 to 19 Click f