What is the VNAV approach procedure?

The VNAV approach procedure refers specifically to a method of navigating to an airport that incorporates vertical navigation guidance. This approach utilizes precise altitude profiles determined by flight management systems to guide an aircraft during its descent. Essentially, VNAV provides vertical guidance in conjunction with lateral navigation to ensure an aircraft can maintain a safe and efficient descent path while approaching the runway.

This procedure allows pilots to follow a predefined vertical path, which is particularly important for managing descent rates and ensuring that the aircraft remains within safe altitude limits as it approaches the destination. It can enhance safety and efficiency, especially in challenging terrain or busy airspace where maintaining altitude is crucial.

The focus of this method is on vertical guidance rather than visual aids for landing, which differentiates it from options relating to solely visual approaches or conflict avoidance regarding airspace restrictions.