1.   Remember that the magnetic compass, clock and stop-watch are your most important navigation instruments.

2.   While the sub was on the seafloor, I learned to track her from the surface using the acoustic navigation instruments.

3.   Equipped with sensitive computerized navigation instruments, the Cavaglia is able to bring the gommone in sight one hour later.

4.   Its navigation instruments had failed, and the fuel tanks were almost empty.

5.   Navigation instruments were so imprecise that it was unlikely they would really be near each other.

6.   The planes also carry inertial navigation instruments to keep track of each turn, to help plot their course.

7.   Other objects include antique music instruments and weapons, ancient globes and navigation instruments, porcelain and antique carpets.

8.   Among the other objects were antique music instruments and weapons, ancient globes and navigation instruments, porcelain and antique carpets.

9.   Shepherd said the investigators mostly were picking up small components from the interior of the plane, including some parts of the navigation instruments.

10.   The chairman of the Norwegian Pilots Association, Tove Skogheim Haugen, criticized the airport for poor runway lighting, lack of radar and limited navigation instruments.