What does OROCA stand for?

The term OROCA stands for Off Route Obstruction Clearance Altitude. This is a specific altitude that provides a pilot with a safety buffer against terrain and obstacles when flying off an established route, such as a published airway. The OROCA is designed to ensure that an aircraft remains clear of obstructions that may be present outside of the typical airspace structure, enhancing safety during navigation in less controlled areas.

The OROCA is essential for pilots, especially those flying in areas where detailed obstacle information may not be available, as it helps in determining safe altitudes during flight operations away from defined airways. This altitude is typically depicted on aeronautical charts, allowing pilots to maintain situational awareness and make informed decisions regarding altitude management.

Understanding the concept of OROCA is vital for instrument flight operations, as it highlights the importance of being aware of both navigational routes and the surrounding terrain and obstacles to ensure safe flight.