But one in a scale of 1:24,000 - about one inch to a third of a mile - permits more precise navigation.

"This offers the entire world the opportunity to have concise, precise navigation," Mr. Hinson said.

Targets were given by exact longitudes and latitudes, thus making precise navigation imperative.

Therefore, it puts an emphasis on a clear, precise navigation and the explanation of visual elements.

He would be too busy for the precise celestial navigation he could have practiced afoot.

The phones combine satellite-based navigation, precise to within 30 feet or less, with an electronic compass to provide a new dimension of orientation.

In order to sail in ocean waters, the Vikings needed to develop methods of relatively precise navigation.

It takes precise navigation in largely uncharted waters.

GPS later was integrated to provide more precise navigation and redundancy in case either system failed.

Bennett developed a passion for accurate flying and precise navigation that would never leave him.