The LLWAS is comprised of at least how many remote stations?

• A. Four
• B. Six
• C. Five
• D. Seven

Answer: (B)

LLWAS works by gathering wind speed and direction data from a network of remote wind sensors placed around the airport and feeding them to a central processor. The idea is to sample the wind field from multiple points so the system can detect gradients and abrupt changes that indicate wind shear near the runway area. Having at least six remote stations ensures there are measurement points around the approach and departure paths in several directions, allowing the processor to identify a hazardous wind-shear pattern rather than basing detection on a single reading. More sensors improve spatial coverage and add redundancy, but six is considered the minimum to reliably sense dangerous wind changes around the airport.