How are navigation waypoints entered in the FMS?

Waypoints in the Flight Management System (FMS) are typically entered by selecting them from the navigation database and confirming the selection. The FMS is designed to facilitate efficient navigation by providing a database of waypoints, which include significant locations such as airports, intersections, and navigational aids. Pilots can easily input these waypoints into the system without the need for manual coordinate input, which would be more time-consuming and prone to error.

Using a confirmation after selection helps to ensure that the correct waypoint is entered for the flight plan. This process streamlines navigation and enhances situational awareness, allowing pilots to focus on other critical aspects of flight management.

The other options do not align with standard practices in modern cockpit operations. For instance, entering waypoints by manually typing in coordinates, while possible, is less efficient and can increase the risk of mistakes. Using a handheld GPS device is not standard procedure in commercial flight operations as the FMS provides comprehensive navigation capabilities. Lastly, referencing the aircraft's flight manual is not relevant to waypoint entry; manuals provide necessary operational information but do not typically facilitate waypoint input.