submersible

My ultra-deep submersible would not be required at those levels, that's half of the level it's designed for.

Over the past five years, drug cartels have increasingly been shipping cocaine by way of hard-to-detect semi-submersible vessels.

First off will be submersible devices—"You can call them swimming machines," he said—deployed to survey the damage.

"Most certainly," said the admiral; and, accompanied by his staff, he followed Metcalf aboard the submersible.

Under these conditions the submersible commander is more or less forced to a policy of lying ambushed to surprise his enemy.

It is easy to understand why the submersible did not take a vital part in any of the major naval actions.

Improvement in motive machinery is the vital necessity in the development of the submersible.

One of the great problems of the submersible has been to master the difficulties of its control while maintaining a desired depth.