Despite the fact that today it is the plane that is considered the safest form of public transport, every year at least several aircraft crash. If the worst happens, then a happy outcome for the crew and passengers is no longer expected in the vast majority of situations. This raises a logical question: why did people never bother to create some kind of "capsule of salvation."
The first thing that comes to mind about a passenger rescue system on an airplane is the argument that a similar system already exists in military aircraft. So why has nothing like this emerged in civilian airlines over the decades? In fact, since the 1970s, a similar system has been tried repeatedly. There were many projects, including several very successful ones.
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None of the initiatives in this area have been ultimately successful for two reasons. The first is the overall complexity of the passenger liner design. The fact is that a military catapult to rescue a pilot is a very complex mechanism, the operation of which does not guarantee a successful outcome at all (contrary to Hollywood films). It is technically extremely difficult to save one person in this way. Rescuing tens and hundreds is even more difficult. The second reason is cost effectiveness. The fact is that everything, even the most potentially viable projects, turned out to be so expensive in realization that it would be easier for airlines to stop flying and start doing horse riding stagecoaches.
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It is precisely because of the multimillion-dollar cost of modernizing the aircraft fleet (which not every large company is capable of pulling), significant growth the cost of new aircraft and the lack of guarantees of efficient operation force the passenger aviation to abandon such design initiatives. In addition, the safety of passengers and crew is improved in other ways from year to year. Namely, by improving the existing aviation equipment. Today, planes crash much less frequently than they did back in the 1980s.
Continuing the topic, read about how airplane pilots remember location and purpose of all buttons.
A source: https://novate.ru/blogs/090120/53008/