The LPWS defended area is what distance?

• A. 500m
• B. 1000m
• C. 750m
• D. 650m

Answer: (D)

The defended area distance is the radius around the defend point that must be secured and observed to provide effective defense. It defines how far defenders must watch, fire, and respond to threats.

650 meters is the best answer because it matches the standard radius used in LPWS practice for defining the defended area. This distance strikes a balance between early threat detection and the ability to deliver controlled, coordinated fire across likely approaches, while staying within practical ranges for observation and weapons. If the distance were much smaller, gaps in coverage could appear; if much larger, it would stretch resources and reduce command and control effectiveness.