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1.  What is one of the main purposes of the maneuvering board?

2.  What is the reference normally used for motion by individuals concerned with maneuvering a vessel?

3.  Answer BOTH questions below in the space provided:

A.  What is normally placed at the center of a maneuvering board, and how is it labeled?

B.  What does vector "er" normally represent on a maneuvering board?

4.  What does the relative motion line (RML) in a CPA-type problem indicate?

5.  A target ship M is tracked on your ship's radar with the following results:

Time            Bearing                Range (yards)

0908            276 degrees        10,000

0911            269 degrees          8,300

0914            258 degrees          6,800

0917            244 degrees          5,800

A.  What is the maneuvering ship's speed of relative movement?

B.  What are the bearing and range of the CPA?

6.  Your own ship is on course 150 degrees, speed 15 knots.  Ship M is observed as follows:

Time                Bearing                Range (yards)

1100                255 degrees        20,000

1106                260 degrees        15,700

1112                270 degrees        11,200

A.  What is the CPA of ship M?

B.  What are the course and speed of ship M?

7.  Your own ship is on course 090 degrees, speed 10 knots.  You sight a ship M on course 270 degrees, speed 15 knots.  What are the magnitude and direction of the following vectors:

A.  The er vector

B.  The em vector

C.  The rm vector

8.  Your own ship is on course 025 degree3s, speed 12 knots.  You sight a ship M on course 000 degrees, speed 15 knots.  What are the magnitude and direction of the following vectors?

A.  The er vector

B.  The em vector

C.  The rm vector

9.  Your own ship is on course 122 degrees, speed 15 knots.  At 0400 a target ship, Skunk M, bears 144 degrees, 27,000 yards.  Skunk M's course is 020 degrees, 30 knots.  What will be the bearing and range of Skunk M at CPA?

10.  Your own ship is on course 285 degrees, speed 18 knots.  At 0800 a target ship M bears 310 degrees, 9,000 yards.  The ship's course is 215 degrees, speed 15 knots.  What will be the bearing of M at CPA?

11.  You are aboard a boat heading 060 degrees, speed 25 knots.  Your anemometer indicates a relative wind to be from 330 degrees Relative at 35 knots.  What are the direction and speed of the true wend?

12.  You are on a boat heading 350 degrees, speed 15 knots.  The true wind is 10 knots from 240 degrees.  What are the direction and speed of the relative wind?

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