Dictionary

down bubble en · ADJ

Etymology

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

Meanings

1. (not-comparable) Having a downward trim (of a submarine); usually follows the number of degrees.
   • Two degrees down bubble. Hold her at 60. 1958, Run Silent, Run Deep, 00:01:25:
   • 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." 2000, Overdue and Presumed Lost, by Arthur MacMahan, page 181

Antonyms

up bubble

Relateds

angle of attack · lose the bubble

Translations (1)

ru с диффере́нтом на́ но́с (having a downward trim)