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razark · 08-12-11, 02:45 PM

Welcome to Subsim!

The protractor tool makes some sense once you get used to how to use it.

Grab the ruler tool. Place one end of the line on the map. Now, extend the line directly east from that point. What bearing shows up directly on that line? 90 degrees!

The target is traveling west. Draw a line from the ship's first position to the second position. Place the protractor on the line. Read the value from the side closest to the starting position. 270 degrees.

Target's course is 45 degrees. Start the line at the ship's position. Draw a line such that it passes through the 45 degree bearing on the protractor. Place the ending point. The line now runs toward the northeast.

Place the starting point at your boat's location. Hold the protractor over the target's position. Read the value where the line crosses the protractor. You've got the true bearing to the target now.

Hope that helps you understand the tool. It may take some time to get used to it.

08-12-11, 02:45 PM	#2
razark Ocean Warrior Join Date: Mar 2007 Location: Houston, TX Posts: 2,731 Downloads: 393 Uploads: 12	Welcome to Subsim! The protractor tool makes some sense once you get used to how to use it. Grab the ruler tool. Place one end of the line on the map. Now, extend the line directly east from that point. What bearing shows up directly on that line? 90 degrees! The target is traveling west. Draw a line from the ship's first position to the second position. Place the protractor on the line. Read the value from the side closest to the starting position. 270 degrees. Target's course is 45 degrees. Start the line at the ship's position. Draw a line such that it passes through the 45 degree bearing on the protractor. Place the ending point. The line now runs toward the northeast. Place the starting point at your boat's location. Hold the protractor over the target's position. Read the value where the line crosses the protractor. You've got the true bearing to the target now. Hope that helps you understand the tool. It may take some time to get used to it. __________________ "Never ask a World War II history buff for a 'final solution' to your problem!"