Worksheet 9 · Skill 7
Doubling the angle on the bow
Plot Pass worksheet. Plot Pass $1.95/month or $19.50/year · Free during preview. Plotroom · cedarpointmarina.net · invented chart, not for navigation.
Steering 078°T at 5.4 kn, at 1145 you see Tern Island tower 35° on the starboard bow. At 1200 it is 70° on the starboard bow.
How far off the object are you at 1200? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 1200: ________ nm Distance off when abeam: ________ nm
Steering 069°T at 7.8 kn, at 1740 you see Gannet Rock daybeacon 30° on the starboard bow. At 1753 it is 60° on the starboard bow.
How far off the object are you at 1753? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 1753: ________ nm Distance off when abeam: ________ nm
Steering 258°T at 10.1 kn, at 0930 you see Kittle water tank 40° on the port bow. At 0935 it is 80° on the port bow.
How far off the object are you at 0935? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 0935: ________ nm Distance off when abeam: ________ nm
Steering 139°T at 9.8 kn, at 1750 you see Gannet Rock daybeacon 40° on the port bow. At 1805 it is 80° on the port bow.
How far off the object are you at 1805? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 1805: ________ nm Distance off when abeam: ________ nm
Steering 198°T at 7.5 kn, at 1650 you see Heron Point Light 20° on the starboard bow. At 1713 it is 40° on the starboard bow.
How far off the object are you at 1713? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 1713: ________ nm Distance off when abeam: ________ nm
Steering 021°T at 10.0 kn, at 0730 you see Gannet Rock daybeacon 25° on the starboard bow. At 0743 it is 50° on the starboard bow.
How far off the object are you at 0743? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 0743: ________ nm Distance off when abeam: ________ nm
Steering 190°T at 10.4 kn, at 1415 you see Kittle water tank 30° on the port bow. At 1432 it is 60° on the port bow.
How far off the object are you at 1432? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 1432: ________ nm Distance off when abeam: ________ nm
Steering 001°T at 4.8 kn, at 0940 you see Gannet Rock daybeacon 35° on the port bow. At 0952 it is 70° on the port bow.
How far off the object are you at 0952? If you hold your course and there is no current, how far off will you pass when it is abeam?
Tolerance: 0.05 nm.
Distance off at 0952: ________ nm Distance off when abeam: ________ nm
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Distance off at 1200: 1.35 nm Distance off when abeam: 1.27 nm | No. 9001 (worked solution) |
| 2 | Distance off at 1753: 1.69 nm Distance off when abeam: 1.46 nm | No. 9002 (worked solution) |
| 3 | Distance off at 0935: 0.84 nm Distance off when abeam: 0.83 nm | No. 9003 (worked solution) |
| 4 | Distance off at 1805: 2.45 nm Distance off when abeam: 2.41 nm | No. 9004 (worked solution) |
| 5 | Distance off at 1713: 2.88 nm Distance off when abeam: 1.85 nm | No. 9005 (worked solution) |
| 6 | Distance off at 0743: 2.17 nm Distance off when abeam: 1.66 nm | No. 9006 (worked solution) |
| 7 | Distance off at 1432: 2.95 nm Distance off when abeam: 2.55 nm | No. 9007 (worked solution) |
| 8 | Distance off at 0952: 0.96 nm Distance off when abeam: 0.90 nm | No. 9008 (worked solution) |