The phrase "aid to navigation" is correct and usable in written English.
It is typically used in contexts related to maritime or aviation, referring to tools or systems that assist in guiding vessels or aircraft safely.
Example: "The new lighthouse serves as a crucial aid to navigation for ships entering the harbor."
Alternatives: "navigation assistance" or "navigational aid".
The Global Positioning System (GPS) has now become a widely used aid to navigation and it is commonly used in many navigational applications such as land surveying, shipping, piloting, route guidance, map making, study of earthquakes, precise time reference, and hobbies and games such as geocaching.
It sends Aid to Navigation teams to inspect every lighthouse once every three months, to make sure the automated bulbs are working and to assess any needed repairs.
She called the lighthouse an important aid to navigation that protects boaters from the rocks near the mouth of Huntington Harbor.
Astonishingly, this has turned out to be true: migrating birds do use the Milky Way as an aid to navigation – as do dung beetles.
An animal that can hear it might thus have a mental infrasound map that it could use as an aid to navigation.
Here are some examples from the government departments most affected: NATIONAL SECURITY Two-week furloughs for most law-enforcement personnel will reduce Coast Guard operations, including drug interdictions and aid to navigation, by 25 percent.
Aids to navigation are a critical element in the air traffic control system.
In addition to the lightships there are almost 600 other aids to navigation within ten miles of N.Y.
They are, in effect, small-scale topographic maps on which current information on aids to navigation have been superimposed.
"Other missions, such as recreational boating safety, aids to navigation, commercial fishing vessel safety and migrant interdictions were also hard hit," Mr. Mead testified.
At about the same time that radio aids to navigation were being refined by engineers, devices that could automate the pilot's role -- automatic pilots -- were developed.
