What does Reduced Vertical Separation Minima (RVSM) involve?

Reduced Vertical Separation Minima (RVSM) is a specification aimed at enhancing the efficiency of airspace usage by allowing aircraft to operate at a reduced vertical separation. Traditionally, aircraft were required to maintain a vertical separation of 2,000 feet between altitudes, particularly in the flight levels above 29,000 feet. However, RVSM reduces this requirement to just 1,000 feet, effectively doubling the number of available altitude levels and improving air traffic management.

Implementing RVSM allows for more aircraft to fly at similar altitudes, which can help alleviate congestion in busy airspace regions. This change is made possible through the use of advanced navigation, surveillance systems, and strict operational procedures to ensure safety even with the reduced separation.

This understanding of RVSM is key for those involved in aviation operations, regulatory frameworks, and air traffic control, as it underscores the balance between efficiency and safety in the skies.