crash dive

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crash dive

a sudden steep dive from the surface by a submarine
References in periodicals archive ?
At any rate, Onishi and others considered crash-dives of utmost importance for they would `demonstrate the heroic Japanese spirit'.
to crash-dive into its self-proclaimed first war of the 21st century,'' Inoue stressed, but added that it is difficult, even callous, to tell the victims, kin and friends of the dead to be rational and to try and view the incident in a wider context.
It will take much more than vague promises about partnerships and tough talk to a district attorney to reverse the performance crash-dive in District One schools.