And if we have one ship that's been running silent, there may be more.

Whatever it is, it's running silent and too far out to find on passives.

The rest of the time, the crews ran mostly silent.

"And keep running silent until I give the order."

They slipped down the river, running silent and dark.

You never knew what had happened to your nanoship while it was running blind and silent.

It can also be a reminder for a saying we have: the river runs silent when the water is deep.

Seven of them running silent, in addition to the three pingers.

No new news yet, obviously, since they're still running silent.

If we're running silent, we'll be shutting the hole down, so we could move it forward.