Английская Википедия:Fire in the hole

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Шаблон:Short description Шаблон:Other uses Шаблон:Pp-vandalism "Fire in the hole" is an expression indicating that an explosive detonation in a confined space is imminent. It originated from American miners, who needed to warn their fellows that a charge had been set.[1] The phrase appears in this sense in American state mining regulations,[2][3] in military and corporate procedures,[4][5] and in various mining and military blasting-related print books and narratives,[6] e.g. during bomb disposal or throwing grenades into a confined space.[1]

In common parlance it has become a catchphrase for a warning of the type "Watch out!" or "Heads up!".[1]

NASA has used the term to describe a means of staging a multistage rocket vehicle by igniting the upper stage simultaneously with the ejection of the lower stage, without a usual delay of several seconds. On the Apollo 5 uncrewed flight test of the first Apollo Lunar Module, a "fire in the hole test" used this procedure to simulate a lunar landing abort. Gene Kranz describes the test in his autobiography:[7] Шаблон:Blockquote

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