Which part of a lensatic compass is used to align with a distant object during measurement?

Which part of a lensatic compass is used to align with a distant object during measurement?

• A. Sighting slot
• B. Thumb loop
• C. Bezel ring
• D. Sighting wire

Answer: (D)

When taking a bearing, you need a precise line of sight to the distant object, and that is provided by the sighting wire. You look through the sighting window and place the slender wire so it superimposes exactly on the target. Keeping the wire aligned as you read the azimuth on the dial gives you the correct bearing. The sighting slot is simply the opening you view through, the bezel ring is used to set or read the bearing, and the thumb loop is only for handling. The key element for aligning with the distant object is the sighting wire.

When taking a bearing, you need a precise line of sight to the distant object, and that is provided by the sighting wire. You look through the sighting window and place the slender wire so it superimposes exactly on the target. Keeping the wire aligned as you read the azimuth on the dial gives you the correct bearing. The sighting slot is simply the opening you view through, the bezel ring is used to set or read the bearing, and the thumb loop is only for handling. The key element for aligning with the distant object is the sighting wire.