Question 970Navigation General

The correct answer is A) and using ranges, the most rapidly changing range should be measured first. When using radar for navigation, the most rapidly changing range should be measured first. This is because the most rapidly changing range will provide the most accurate and up-to-date information about the vessel's position relative to the target. Measuring the most rapidly changing range first allows the navigator to make more informed decisions about the vessel's course and speed. The other options are incorrect because: B) The two objects should be 30° to 150° apart, not 80° to 110°. C) The objects should be at least 60° apart, not close to reciprocal bearings. D) A tangent bearing and a range is not the best fix, as it does not provide enough information to determine the vessel's position.