41. A number of navigation aids are located around Cape Dombey at the bay s south end. 42. When used as website navigation aids , the terms are hyperlinked to items associated with the tag. 43. This may be supplemented using radio navigation aids . 44. "' Foghorns are a navigation aid for mariners. 45. They are merely navigation aids and this discussion should address itself to the utility of navigation. 46. Such versions omit important information to the extent they do not also include other navigation aids . 47. The investigation concluded that the main cause of the accident was the wrong use of navigation aids . 48. Hospital Point Light is owned and operated as a navigation aid by the United States Coast Guard. 49. They were fishing for trepang and appeared to have only a small compass as a navigation aid . 50. About 75 percent of the navigation aids in the county's affected areas were damaged in the hurricane.