Worksheet 895 · Skill 5

Set and drift

Print this worksheet Next sheet

Plot Pass worksheet. Plot Pass $1.95/month or $19.50/year · Free during preview. Plotroom · cedarpointmarina.net · invented chart, not for navigation.

1. At 1040 your fix is 341°T, 1.8 nm from Mill stack. You steer 351°T at 4.5 kn through the water. At 1210 a new fix puts you 290°T, 3.7 nm from Tern Island tower.

   Plot the 1210 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 90 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

2. At 0955 your fix is 211°T, 2.5 nm from Gannet Rock daybeacon. You steer 283°T at 6.3 kn through the water. At 1030 a new fix puts you 325°T, 1.7 nm from Mill stack.

   Plot the 1030 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 35 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

3. At 0955 your fix is 027°T, 2.9 nm from Gannet Rock daybeacon. You steer 150°T at 5.0 kn through the water. At 1030 a new fix puts you 077°T, 2.0 nm from Gannet Rock daybeacon.

   Plot the 1030 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 35 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

4. At 0835 your fix is 220°T, 2.7 nm from Tern Island tower. You steer 299°T at 6.6 kn through the water. At 0910 a new fix puts you 053°T, 3.0 nm from Westfield church spire.

   Plot the 0910 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 35 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

5. At 1340 your fix is 356°T, 1.2 nm from Kittle water tank. You steer 281°T at 4.3 kn through the water. At 1430 a new fix puts you 024°T, 2.4 nm from Mill stack.

   Plot the 1430 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 50 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

6. At 0950 your fix is 001°T, 1.7 nm from Westfield church spire. You steer 106°T at 5.5 kn through the water. At 1030 a new fix puts you 273°T, 3.2 nm from Tern Island tower.

   Plot the 1030 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 40 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

7. At 1000 your fix is 012°T, 2.2 nm from Gannet Rock daybeacon. You steer 179°T at 7.8 kn through the water. At 1030 a new fix puts you 014°T, 0.9 nm from Kittle water tank.

   Plot the 1030 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 30 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

8. At 1425 your fix is 246°T, 2.0 nm from Gannet Rock daybeacon. You steer 286°T at 4.8 kn through the water. At 1520 a new fix puts you 074°T, 3.1 nm from Westfield church spire.

   Plot the 1520 DR, then find the current: set (the true direction the water moved you, from the DR to the fix) and drift (its speed in knots over the 55 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn