conning tower

No helicopters swung their blades above; there were only the bulge of a conning tower and the heavy inset glasses of the lookouts.

Only the upper 100 portion of the conning tower escaped a ducking.

The conning tower was clear of the water, and on its curved side was painted in unmistakable letters the word, "Grampus."

At that moment the top of the conning tower was pushed upward, and the head of Jurgens appeared over the rim.

Matt was first to reach the ladder at the bow, and he swung up it lightly, crossed the deck and climbed into the conning tower.