Discussion
A beacon detection range is 2 km in ideal conditions but falls to 1.5 km in the prevailing conditions. The search area covered per pass falls by about
Answer: B
Swath width scales with range, so coverage falls as \( 1.5/2 = 0.75 \), a reduction of 25 per cent. If area rather than swath is considered the reduction is larger, which is why detection conditions matter so much to search planning.
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