What is MOCA an abbreviation for?

The abbreviation MOCA stands for Minimum Obstacle Clearance Altitude. This term is crucial in aviation as it refers to the lowest altitude that meets the required clearance from obstacles for aircraft navigation. MOCA guarantees that aircraft can safely clear any known terrain and obstacles between navigational fixes, especially in areas that may be surrounded by higher terrain. When flying at or above this altitude, pilots can be assured of a certain level of safety from obstacles on the ground.

The significance of MOCA lies in its application during instrument flight rules (IFR) operations, particularly in areas with limited navigational aids. It ensures that route-based altitudes provide adequate clearance above obstacles, thus supporting safe navigation and flight planning. Understanding MOCA is essential for pilots to make informed decisions about flying altitudes and ensuring the safety of their flight operations.