Final answer:
There is generally no set limit to the number of off-route waypoints that can be displayed on an MFD. The number of off-route waypoints displayed depends on the software and navigation system being used.
Step-by-step explanation:
On an MFD (Multi-Function Display), there is generally no set limit to the number of off-route waypoints that can be displayed. The number of off-route waypoints displayed on an MFD depends on the specific software and navigation system being used.
Off-route waypoints are additional waypoints that are not part of the original flight plan. They can be manually added by the pilot or automatically generated by the navigation system to account for deviations from the original route.
For example, if a pilot needs to make a detour due to weather conditions or air traffic, they can add off-route waypoints to their flight plan to guide them safely to their destination.