navigation aid in a sentence

Examples

1. The actual navigation aid is a skeletal tower erected in 1970.
2. A secondary red light acts as a navigation aid for vessels sailing south southeast.
3. Occasionally the " Sipu Muin " performs navigation aid maintenance.
4. It was formerly used as a navigation aid for ships.
5. This is the oldest type of navigation aid there is,
6. Mannesmann already has a separate subsidiary, Autocom, that provides navigation aids through wireless networks.
7. Models loaded with marine navigation aids can also be used for fishing and boating.
8. So it's useless as navigation aid and misleading as a tool of article categorization.
9. The British, who had developed similar navigation aids, faced the same problem of quantity.
10. The airport offers the following radio navigation aids : DME.