Airplane seatbelts

Yeah, and this is a much more frequent thing than crashes. I've been on planes multiple times when there was sudden turbulence and people without seatbelts lifted out of their seats. I don't think any of my personal experiences resulted in someone hitting their head, but that happens. There was just video of one earlier this year.

I have observed that "very clever" people on the internet have a tendency to disregard solutions that are only partial, even if there is little to no downside to them.

Yeah, it's a similar reason your wear a helmet on a bicycle/motorcycle, if a car hits you doing 50+ MPH you're probably done for regardless of whether you're wearing a helmet. If you go over your handle bars face first into the pavement doing 10 MPH it keeps that injury from being catastrophic.

Also in the event of a crash you don't become a projectile that kills someone else.

Or if you are on a Boeing plane and a side panel/door spontaneously flies off off you don't get sucked out

/s, but not really /s

Never been on a flight never assumed I would be afraid of flying however that sounds horrific, so thanks for giving me a new fear of flying.

THIS!

Do you have a source for that? I'm skeptical.

And in the rare horrific crash, the seat will not remain attached to the floor anyway.

The roof tearing off was a Boeing. an Aloha Airlines 737.

Planes rarely reverse into mountains.

And the survival statistics have a lot to do with the amount of work that has been put into making the worst case "controlled descent into terrain" scenario exceptionally rare.

About 20 years ago I read a grim book about plane crashes. They claimed that the number 1 predictor of crash survivability on commercial craft was being a male between the ages of 20 and 50. They're apparently much better equipped to claw and climb over the other passengers on the way out.

Grim. I fly a lot and think about it at least every other trip.

The stats of surviving in a plane are quite high.

The stats of surviving in a plane with at least one death are very low.

Usually, if anyone dies, everyone dies.

I think this every time I'm the back which is loud because of the engines.

You also have hugely increased survival odds with backwards seats.

Tell that to the people in the back of the plane on Lost 🤣

Not a stupid question.

Between the training required for a solo parachute jump, and the cost (and more importantly) weight of the equipment, plus the relative safety of commercial flights, it's simply not justified.

In more than a few cases we've seen airliners make emergency landings that are gnarly, but the majority survive. In more cases than I can count, there's checks and balances that ground flights because of safety concerns either at the departure point or at the destination (icing, high winds, etc), or due to mechanical concerns.

It's rare that a fully inspected and functional aeroplane will fall out of the sky, and we do everything in our power to ensure that all planes that leave the ground are fully inspected and functional. Short of a freak occurrence, like a fast forming weather phenomenon, there's so many checks and balances that airliner crashes are exceedingly rare.

So not only is a crash rare, there's no guarantee that a crash will be fatal, usually the pilot can at least get the plane on the ground without killing everyone aboard, and the fact that it's a massive amount of extra weight that requires training that the average person doesn't have, there's little point and nearly nothing to gain from doing something like that, while it would have significant downsides on flight efficiency and increase the costs of fuel per flight due to the extra weight.

Then there's the consideration of, even if they were able to successfully parachute to the ground, what then? It's pretty much a guarantee that nobody has a radio, and that you're far enough away from civilization that your cellphone doesn't work, so now you have hundreds of people spread out over potentially thousands of miles of terrain/water/whatever that you now need weeks to search and rescue everyone. Taking weeks on search and rescue, pretty much guarantees that you'll find people who landed safely, then died from exposure to the environment.

On the flip side, if everyone is in the plane when it crashes then all you need to do is find the plane; everyone will be in that general area, whether alive or dead.

There's just too many downsides to having parachutes on board to make it feasible.

An explosive release canopy for an ejection seat system on an airliner would just release the entire top half of the plane, and don't forget that fighter pilots are both wearing flightsuits and get specific training for the event.

Even beyond the material and engineering costs it's a difficult ask, probably better to just focus on reliability in the first place.

I remember seeing an article back in the 90s or maybe even 80s that was exploring the possibility of the entire passenger compartment separating from the wings and rest of the fuselage and parachuting down in the event of a major failure. The thing is, it would be ridiculously expensive to implement, and there are very few situations where such a system would be any better than keeping the plane in one piece.

Some valid answers are already given by other commentators. Just want to highlight that commercial airlines are operating barely cost positive. Every extra bit of cost added has to be at least covered by some other stream of revenue. How much more money can a seat in these crammed airliners make to cover the cost of R&Ding and maintaining additional safety measures?

It’s part of the appeal