What does Grid MORA stand for?

Grid MORA stands for Minimum Off Route Altitude. This term is used in aviation to denote the lowest altitude that must be maintained to ensure safe clearance above terrain and obstructions in the vicinity of an aircraft's intended flight route but outside of designated airways.

The importance of MORA lies in its emphasis on safety, as it helps pilots avoid obstacles and terrain that could pose risks during flight, especially in areas where published routes or waypoints may not be available or when operating in more remote regions. This altitude is specifically designed to provide a buffer above the highest obstacles or terrain features, enhancing situational awareness and preventing unintended encounters with hazards.

By contrast, the other options presented pertain to different concepts in aviation navigation and altitude considerations, which do not align with the specific definition and application of MORA in operational contexts. Understanding the role of Minimum Off Route Altitude helps pilots in maintaining safety margins during flight operations.