Wikipedia
Diving planes, also known as hydroplanes, are control surfaces found on submarines which allow the vessel to pitch its bow and stern up or down to assist in the process of submerging or surfacing the boat, as well as controlling depth when submerged.
Usage examples of "diving plane".
At first he had thought his exhilarated mood was the snapback from the bombing mission, the plain joy of being alive after brushing death in a diving plane, in a whirl of blue cones and exploding colored balls.
One diving plane hung down like the wing of a crippled bird, and the Periscopes and masts housed in the structure were bent into the shape of a modernistic sculpture.
The diving plane on her left side was simply gone, nothing there but an ugly gash where it should have been.
Framed in the opening against the sky was a diving plane coming head on and, as he watched, he saw something drop from each wing, and a spurt of vapour.
Straight ahead, two oncoming cars split in a Y around his diving plane, just missing it.
The bronze man, avoiding the flying death that had been released from the liner, had wrapped the diving plane in a chemical smoke screen to give the idea that it had caught fire and crashed.
Then out of the night he heard the high-pitched whine of a diving plane, and the night was lit with the insane lightning of tracer gone wild, while over his head the sky burst into a roaring, chattering madness of sound.
From a diving plane armed only with rifles, a single man dressed in white on a snow background was an almost impossible target.
A diving plane, almost as though it was bent on attacking them Kamikazi-style, suddenly turned off at the last moment, arcing its way towards that sinister compound with its shimmering runway which they had passed earlier.