When cleared to hold south on the 180 radial, what is the recommended entry procedure?

When an aircraft is cleared to hold south on the 180 radial, the recommended entry procedure is direct. This means the aircraft will navigate directly to the holding fix and then enter the hold based on the entry procedure's established guidelines. The direct entry is typically the most efficient and straightforward option when the aircraft position is directly aligned with the holding pattern's inbound course.

In a holding pattern, the entry methods—direct, parallel, and teardrop—each have their specific applications based on the aircraft's position relative to the holding fix and its inbound course. However, when cleared to hold on a specific radial with the aircraft already in a position where you can fly directly to the fix, a direct approach simplifies the process, ensuring the aircraft can establish itself in the hold efficiently.

While other entry procedures are acceptable depending on the situation—such as when a pilot is arriving from an unexpected angle or if they have other flight considerations—the most recommended and efficient method when you are aligned and cleared is to enter directly into the holding pattern.