Chapter X

**Answers to Mini-Chart #4
Lesson:**

- You are at position 37° 01.3' N and 076° 0.3' W
at 0900. You are on a course of 112° psc and you have a deviation of 2° W. Your speed is
5 kts. At 1015 you get a loran fix of 37° 02.0 N and 075° 53.6° W. Compute the
following items:

**Set 010° T Drift 1.5 kts CMG 083° T SMG 5.2 kts**

- At 1320 you are located at 36° 58.7' N and 075°
55.0 W. You are traveling at a speed of 6 kts on a course of 160° M. Your deviation is 2E
on this heading. At 1430 you fix your position at 36° 50.0' N and 075° 55.0' W. Compute
the following items:

**Set 233° T Drift 3.8 kts CMG 180° T SMG 7.4 kts**

- The time is 1600 and your position is 36° 55.6 N
and 075° 50.9' W. You are on a course of 250° T, speed 4 kts and your deviation is 2°
W. At 1715 Rudee Inlet MOA light bears 200 M and the lookout tower just south of 36°
55.0' N bears 310° M. Plot your two bearing fix and find the set and drift information.

Your 1715 fix is**36° 52.6' N, 075° 56.3' W. Set 200° T Drift 1.1 kts CMG 240° T SMG 4.9 kts**Use a fresh Mini-Chart #4 to practice plotting the following.

- At 1000 you are located at 37° 02.0' N and 075°
51.2' W. Your course is 205° psc and your speed is 7 kts. Your deviation is 5° W. At
1120 you get a fix by your GPS that shows your location of 36° 54.0' N and 075° 50.9' W.
Calculate the following:

**Set 058° T Drift 1.7 kts CMG 178° T SMG 6.0 kts**

- It is high noon and you are located at 36° 50.2'
N and 075° 55.5' W. You are on a course of 350° M, your deviation is 2° E and your
speed is 8 kts. At 1245 you get a fix of 36° 58.2' N and 075° 55.8' W. Compute the
following items:

**Set 038° T Drift 3.9 kts CMG 358° T SMG 10.7kts**

- At 1500 your position is 36° 57.0' N and 075°
58.9' W. Your course is 040° T. Your deviation is 3° E. Your speed is 5 kts. At 1615 you
fix your position by a combination of ranges, bearings and depths that indicate that you
are located at 37° 00.' N and 075° 56.3' W. Compute the following items:

**Set 220° T Drift 1.9 kts CMG 040° T SMG 3.1 kts**

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