Topic Author
Posts: 484
Joined: Thu Apr 20, 2017 5:14 pm

evacuation certification

Sun Aug 25, 2019 9:23 am

current rules state pax need to evacuate in 45 sec with half of doors blocked.

some more says "range to nearest door", but as i know its not general rule for entire planet.

after read about ssj crash and similar (for evacualtion issues) in past (first A320, ... Flight_28M, etc)
i think more rules may be discussed.

first, "half of doors" may be in best or worst case scenario, like we see in ssj

second, "range to doors" can be different in different parts of plane. for example, I think while tail area may be most safe in impact, it may be worse in case of fire
of course, "range to door" can be transformed to "range to second door" and /or range to "both side door"

up to crazy thinks, may be possible to add to rafts some kind of fire-proof tunnels to path danger area (and to avoid to suck fumes inside)

even some kind of catapulting may be possible - not for air but on ground.

of course i dont tell we need to install catapultes on all airliners immediatly. :lol:
but think about something simplier for same result - safe lives - may be possible.
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Posts: 502
Joined: Wed Apr 26, 2017 2:18 am

Re: evacuation certification

Sun Aug 25, 2019 3:57 pm

Unless anything changed, I'm pretty sure it's 90 seconds, not 45.
Captain Kevin
Posts: 8773
Joined: Sun Sep 13, 2015 2:15 pm

Re: evacuation certification

Sun Aug 25, 2019 4:34 pm

AirKevin wrote:
Unless anything changed, I'm pretty sure it's 90 seconds, not 45.

And one should note that "half the number of exits in 90 seconds" is
a synthesized artificial requirement with good general coverage.

What people often propose is special case solutions that under perform massively
under another set of circumstances.
Murphy is an optimist
Topic Author
Posts: 484
Joined: Thu Apr 20, 2017 5:14 pm

Re: evacuation certification

Sun Aug 25, 2019 6:14 pm

i talk about rules addition , not about replacing
Posts: 107
Joined: Sun Jun 22, 2014 7:14 pm

Re: evacuation certification

Mon Aug 26, 2019 8:42 am

With these things you also have to think about a weight increase, maintenance costs, development, etc. Probably costs more than the costs of lives saved so it isn't happening.

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