You determine your position by matching the line figures displayed on the set to a set of LORAN ______ superimposed on a chart. Which term completes the sentence?

You determine your position by matching the line figures displayed on the set to a set of LORAN ______ superimposed on a chart. Which term completes the sentence?

• A. Contours
• B. Curves
• C. Latitude Lines
• D. Longitude Lines

Answer: (B)

LORAN position fixes are found by comparing the line figures from the receiver to a set of lines drawn on the chart. Those lines are called LORAN curves. They represent the lines of position produced by constant time-difference measurements; because time differences map to loci that are curved (hyperbolic), the term “curves” best fits. By aligning the display to the chart’s LORAN curves, you locate where those curves cross, giving your position. Contours would be elevation or depth lines, not related to radio fixes. Latitude and longitude lines form a grid for coordinates, not the LORAN line features used here.

LORAN position fixes are found by comparing the line figures from the receiver to a set of lines drawn on the chart. Those lines are called LORAN curves. They represent the lines of position produced by constant time-difference measurements; because time differences map to loci that are curved (hyperbolic), the term “curves” best fits. By aligning the display to the chart’s LORAN curves, you locate where those curves cross, giving your position.

Contours would be elevation or depth lines, not related to radio fixes. Latitude and longitude lines form a grid for coordinates, not the LORAN line features used here.