this post was submitted on 29 Dec 2024
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Crazy Fucking Videos

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[–] fox2263 35 points 4 days ago (9 children)

Probably not a good place to have a wall.

[–] rtxn 8 points 4 days ago* (last edited 4 days ago) (6 children)

~~The wall is there to prevent an overrunning aircraft from ramming into whatever's behind the wall. It's obviously not meant to stop a heavy jet at that speed, but for a smaller or slower aircraft, it could mean the difference between arresting the plane as softly as possible under the circumstances, and crashing the airplane anyways into trees, the localizer antennas, or public roads with cars and people on them, in a place that airport rescue and firefighters can't easily reach.~~

I was completely incorrect about that specific airport. The mound is part of the localizer antenna, which was not visible on the video. More: https://www.youtube.com/watch?v=BzmptA6s-1g

[–] [email protected] 8 points 4 days ago (5 children)

Agreed, but-

Why not have something softer/gentler deceleration than a hardened barrier? A gravel trap like you see for overloaded trucks at the bottom of steeps hills for instance? It’s still going to suck and likely disintegrate the aircraft a lot, but like the Azerbaijan 8243 crash shows, you can have a hard landing off runway not end with 100% catastrophe.

[–] wolfpack86 2 points 4 days ago (1 children)

There are runways with crushable concrete at the ends, but I'm not sure that does much for something skidding across without gear down.

https://www.faa.gov/newsroom/engineered-material-arresting-system-emas-0

Same link addresses a lot of your questions, I think

[–] [email protected] 2 points 3 days ago

To date, EMAS safely stopped 22 overrunning aircraft, carrying 432 crew and passengers aboard those flights.

Seems that this isn’t a new tech but can be hard to retrofit at airports with limited space. Cool to see a list of airports that do have it installed though

In some cases, it is not practicable to achieve the full standard RSA because there may be a lack of available land. There also may be obstacles such as bodies of water, highways, railroads, and populated areas or severe drop-off of terrain.

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