Which name is associated with the Expanding Square Search pattern?

Which name is associated with the Expanding Square Search pattern?

• A. Sierra Sierra (SS)
• B. Victor Sierra (VS)
• C. Sector Search Pattern: Single Unit
• D. Circular Search Pattern

Answer: (A)

The Expanding Square Search pattern is a square-spiral approach that grows outward from the last known point to systematically cover the surrounding area. It’s designated by the name Sierra Sierra, a two-word code used in SAR planning to identify this specific geometry. The pattern starts at or near the last known location and moves in right-angle segments that gradually increase in distance, ensuring each ring around the point is scanned without large gaps or overlaps. This is different from a Circular Search Pattern, which uses concentric circles around the point, and from a Sector Search Pattern: Single Unit, which searches a defined wedge with straight-line legs. The "Sierra Sierra" naming specifically corresponds to the expanding-square geometry.

The Expanding Square Search pattern is a square-spiral approach that grows outward from the last known point to systematically cover the surrounding area. It’s designated by the name Sierra Sierra, a two-word code used in SAR planning to identify this specific geometry. The pattern starts at or near the last known location and moves in right-angle segments that gradually increase in distance, ensuring each ring around the point is scanned without large gaps or overlaps.

This is different from a Circular Search Pattern, which uses concentric circles around the point, and from a Sector Search Pattern: Single Unit, which searches a defined wedge with straight-line legs. The "Sierra Sierra" naming specifically corresponds to the expanding-square geometry.