Atmospheric entry/ru

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Возвращение капсулы "Kerbal X".
Эффекты от входа в атмосферу в атмосфере Джула.

Вход в атмосферу (англ. "Atmospheric entry") - это процесс, при котором космический аппарат или другой объект входит в атмосферу небесного тела. Он обычно используется при обращении вокруг и возвращении к Кербину.

Обозначения

Правильный научный термин - атмосферный спуск (англ. "atmospheric entry") и применяется ко всем объектам в атмосфере. Возвращение (англ. "re-entry" или "reentry") используется только в том случае, когда аппарат входит в атмосферу того небесного тела, откуда он был запущен. Так как все аппараты запускаются с Кербина, то это правильно только для входа в атмосферу Кербина. В разговорной речи, термин возвращение используется при всех случаях атмосферного спуска. Аэрозахваты можно рассматривать как атмосферные спуски, несмотря на то, что атмосферным спуском обычно описывается замедление в атмосфере для помощи при посадке.

Внешние проявления

The atmospheric entry can first be detected then the velocity starts dropping although the craft is falling and the periapsis is still ahead. As soon as the craft sinks far enough into the atmosphere that the drag is building up effects can be seen which look like flames. Those effects were added in версия 0.19.0.

Опасности для летательного аппарата

Although those flames appear dangerous and atmospheric entry is often the most dangerous point of missions in the real world they are usually quite harmless in Kerbal Space Program. Those effects are merely cosmetic and in the stock game the drag induced by the atmosphere can only destroy extended solar panels – the exception being the OX-STAT Photovoltaic Panels, which cannot be extended or retracted; since they lie flat against the surface to which they're mounted, they generally won't be harmed by atmospheric entry. The rest of the craft won't break apart during entry unless it strikes the atmosphere at extremely high velocity (generally beyond that which can be achieved without cheating) or it has many flexible part joints and an un-aerodynamic shape (e.g., a space station).

If returning to Kerbin, then disintegrating solar panels might be fun to watch, but this phenomenon can be a danger to probes on other bodies. In extreme cases, it is possible for solar panels without the protective casing to be destroyed despite being retracted, though this only occurs on Eve's dense atmosphere.

With their protective spacesuits, Kerbals can survive entering the atmosphere. Of course, they will usually die upon impact, although a glitch exists in which they may not be harmed if they hit the ground helmet-first.

A spacecraft can be easily obliterated during atmospheric entry if physics warp is activated. It is advised not to activate physics warp with a parachuting ship until the chute opens. Parachutes that have opened can survive the 3x physics warp on Kerbin.

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