"Helm, use navigational sensors and try to lock on."

I'll keep an eye on the navigational sensors, and you just get us there.

I am feeding that data into your navigational sensors.

Without navigational sensors, and unless they had incredibly good luck, doing a star-by-star match would be impossible.

Next came alerts from the navigational sensors: star fix and all navigational-beacon locks had been lost.

No indication of any problems, no unusual readings from the navigational sensors.

The long-range navigational sensors have just made contact with a small object in our flight path.

"My navigational sensors are still having trouble clocking it accurately."

Tell them we're on a research mission and our navigational sensors malfunctioned.

The Enterprise's navigational sensors wouldn't work there.