They located the small submarine in three more minutes.

Especially trapped in a small submarine that was obviously flooding.

In later levels, a smaller white submarine appears which also cannot be destroyed.

The boats were small coastal submarines built to a French design.

People with a large amount of money can even buy their own small submarine to explore under the sea and look at fish.

Outside the window, three small submarines had come down and were hovering over the grid.

The Party is in favour of small submarines with a short range.

You can build three times as many small submarines for your money as big ones.

It was a small submarine which couldn't have more than a crew of a few men.

The small submarine was not only fast and silent, but it had the best ears of any vessel in the sea.