this post was submitted on 29 Dec 2024
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~~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
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.
No system can be 100% safe. You either don't have the money or space or time for every system that could possibly mitigate crashes. Especially with how rare stuff like this is, it doesn't always make sense. Cost Vs efficiency Vs safety is an equation balanced by the individual all the way up to the government everyday. Everything is a trads-off.
As a non-capitalist the very concept of "this would save a lot of lives, but it costs too much" is extremely off-putting. I know it's the world we live in, and obviously this argument can be taken to a ridiculous extreme, but building a solid wall is clearly not the answer. As soon as designers/engineers start putting a price on a life we're into pretty shitty territory.