Worksheet 830 · 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 1030 your fix is 031°T, 1.8 nm from Mill stack. You steer 325°T at 4.2 kn through the water. At 1135 a new fix puts you 255°T, 2.8 nm from Tern Island tower.

   Plot the 1135 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 65 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

2. At 1205 your fix is 051°T, 3.7 nm from Westfield church spire. You steer 175°T at 4.6 kn through the water. At 1235 a new fix puts you 092°T, 3.4 nm from Westfield church spire.

   Plot the 1235 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  

3. At 0900 your fix is 257°T, 1.4 nm from Tern Island tower. You steer 222°T at 5.8 kn through the water. At 0950 a new fix puts you 001°T, 0.9 nm from Heron Point Light.

   Plot the 0950 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  

4. At 1340 your fix is 000°T, 2.1 nm from Mill stack. You steer 334°T at 6.4 kn through the water. At 1445 a new fix puts you 049°T, 3.3 nm from Westfield church spire.

   Plot the 1445 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 65 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

5. At 0905 your fix is 335°T, 2.2 nm from Mill stack. You steer 303°T at 7.0 kn through the water. At 0945 a new fix puts you 091°T, 1.2 nm from Westfield church spire.

   Plot the 0945 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  

6. At 1310 your fix is 357°T, 2.5 nm from Mill stack. You steer 007°T at 4.7 kn through the water. At 1340 a new fix puts you 233°T, 1.4 nm from Tern Island tower.

   Plot the 1340 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  

7. At 1200 your fix is 019°T, 2.2 nm from Mill stack. You steer 095°T at 6.2 kn through the water. At 1300 a new fix puts you 031°T, 2.6 nm from Kittle water tank.

   Plot the 1300 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 60 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn  

8. At 1335 your fix is 054°T, 2.8 nm from Heron Point Light. You steer 322°T at 5.6 kn through the water. At 1445 a new fix puts you 056°T, 3.1 nm from Westfield church spire.

   Plot the 1445 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 70 minutes).

   Tolerance: 4° and 0.15 kn.

   Set: ________ °T   Drift: ________ kn