Prepared LZ surface definition?

Prepared LZ surface definition?

• A. Unpaved surface; stabilized soil, aggregated surfaces, compacted native soils, or matting
• B. Paved surface; flexible, rigid, or a combination of the two
• C. Natural grass with no foundation
• D. Concrete and asphalt combination

Answer: (B)

A prepared LZ surface means a surface that has been built up or stabilized to provide a solid, load-bearing area for aircraft operations. That’s why it’s defined as a paved surface, and it can be rigid (like concrete), flexible (such as asphalt or portable matting), or a combination of both. This stability is essential to support aircraft weight and handle rotor wash, reducing dust, loose debris, and uneven terrain that could affect landing and takeoff. Natural grass or unpaved, unsupported ground wouldn’t meet that stability requirement, which is why they aren’t considered prepared. A concrete-and-asphalt mix fits the definition because it’s still a paved, stable surface, just using two rigid materials.

A prepared LZ surface means a surface that has been built up or stabilized to provide a solid, load-bearing area for aircraft operations. That’s why it’s defined as a paved surface, and it can be rigid (like concrete), flexible (such as asphalt or portable matting), or a combination of both. This stability is essential to support aircraft weight and handle rotor wash, reducing dust, loose debris, and uneven terrain that could affect landing and takeoff. Natural grass or unpaved, unsupported ground wouldn’t meet that stability requirement, which is why they aren’t considered prepared. A concrete-and-asphalt mix fits the definition because it’s still a paved, stable surface, just using two rigid materials.