What is "decision altitude" in aviation?

Decision altitude refers specifically to the critical altitude during an instrument approach where the pilot must make an important decision: whether to continue the approach to landing or to execute a missed approach and climb away from the airport. This decision point is vital for ensuring safety, as it typically occurs when the aircraft is below the minimum safe altitude for continued visibility or when the pilot might need to act on insufficient visual reference to make a safe landing.

This concept is particularly important in precision and non-precision approaches, as it directly relates to the requirements of the approach procedure being flown. Understanding decision altitude helps pilots make informed choices that prioritize safety and adherence to established aviation protocols. The focus on this specific altitude reflects the need for pilots to remain vigilant and prepared for potential go-around situations, allowing for a structured and methodical approach to landing in varied conditions.