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Navigation is the process of planning and controlling travel from one location to another. There are many methods of navigation using different techniques and instruments.

1 vote

Do airlines use GPS for critical purposes? If so, why?

It's not something that's absolutely needed to fly, but more advanced EGPWS units like the Honeywell Mark XXII EGPWS a terrain database and GPS as at least one of the inputs for locating the aircraft. …
David A's user avatar
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