Worksheet 789 · Skill 4
Two-bearing fix
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At 1050 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 118°M and Mill stack bears 170°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Red nun "2" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Red nun "2": ________ °T Distance: ________ nm
At 0925 you take two bearings with a hand-bearing compass: Heron Point Light bears 279°M and Gannet Rock daybeacon bears 043°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Mill stack to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Mill stack: ________ °T Distance: ________ nm
At 1300 you take two bearings with a hand-bearing compass: Westfield church spire bears 239°M and Heron Point Light bears 185°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Red nun "2" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Red nun "2": ________ °T Distance: ________ nm
At 1050 you take two bearings with a hand-bearing compass: Mill stack bears 190°M and Westfield church spire bears 261°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Tern Island tower to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Tern Island tower: ________ °T Distance: ________ nm
At 0720 you take two bearings with a hand-bearing compass: Mill stack bears 150°M and Gannet Rock daybeacon bears 077°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Green can "1" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Green can "1": ________ °T Distance: ________ nm
At 0805 you take two bearings with a hand-bearing compass: Westfield church spire bears 270°M and Mill stack bears 156°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Red nun "2" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Red nun "2": ________ °T Distance: ________ nm
At 0935 you take two bearings with a hand-bearing compass: Westfield church spire bears 315°M and Heron Point Light bears 230°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Green can "1" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Green can "1": ________ °T Distance: ________ nm
At 0725 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 214°M.
Variation is 7°W (from the rose); a hand-bearing compass held away from the boat's steel is taken to have no deviation. Convert to true, plot the two lines of position, and give the fix as the true bearing FROM Gannet Rock daybeacon to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Gannet Rock daybeacon: ________ °T Distance: ________ nm
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 345 °T Distance: 2.13 nm | No. 789001 (worked solution) |
| 2 | Bearing from Mill stack: 053 °T Distance: 2.51 nm | No. 789002 (worked solution) |
| 3 | Bearing from Red nun "2": 317 °T Distance: 3.76 nm | No. 789003 (worked solution) |
| 4 | Bearing from Tern Island tower: 292 °T Distance: 1.56 nm | No. 789004 (worked solution) |
| 5 | Bearing from Green can "1": 162 °T Distance: 1.28 nm | No. 789005 (worked solution) |
| 6 | Bearing from Red nun "2": 310 °T Distance: 2.64 nm | No. 789006 (worked solution) |
| 7 | Bearing from Green can "1": 249 °T Distance: 0.82 nm | No. 789007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 309 °T Distance: 1.56 nm | No. 789008 (worked solution) |