down bubble

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English

[edit]

Etymology

[edit]

From the bubble of air in the glass tube of the inclinometer, a gauge that indicates the submarine's vertical trim.

Adjective

[edit]

down bubble (not comparable)

  1. (nautical) Having a downward trim (of a submarine); usually follows the number of degrees.
    Antonym: up bubble
    • 1958, Run Silent, Run Deep, 00:01:25:
      Two degrees down bubble. Hold her at 60.
    • 2000, Overdue and Presumed Lost, by Arthur MacMahan, page 181
      Dissatisfied with Sailfin's sluggish response, he turned the iron wheel a bit more until the bubble rode backward, indicating that the submarine's stern had lifted relative to the dipping bow. A glance at the calibrations etched into the brass plate behind the liquid-filled glass tubing told him that Sailfin's nose has dipped the required amount. "We have ten degrees down bubble, sir."

Translations

[edit]

See also

[edit]