Worksheet 667 · Skill 4
Two-bearing fix
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At 0950 you take two bearings with a hand-bearing compass: Mill stack bears 159°M and Heron Point Light bears 213°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 1245 you take two bearings with a hand-bearing compass: Kittle water tank bears 168°M and Heron Point Light bears 264°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 0855 you take two bearings with a hand-bearing compass: Heron Point Light bears 186°M and Gannet Rock daybeacon bears 112°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 Westfield church spire to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Westfield church spire: ________ °T Distance: ________ nm
At 0955 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 268°M and Kittle water tank bears 209°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 Bell buoy "HS" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Bell buoy "HS": ________ °T Distance: ________ nm
At 1415 you take two bearings with a hand-bearing compass: Mill stack bears 214°M and Westfield church spire bears 285°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
At 1130 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 102°M and Mill stack bears 182°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 1255 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 101°M and Heron Point Light bears 227°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 1300 you take two bearings with a hand-bearing compass: Mill stack bears 155°M and Westfield church spire bears 225°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 300 °T Distance: 1.28 nm | No. 667001 (worked solution) |
| 2 | Bearing from Tern Island tower: 141 °T Distance: 3.54 nm | No. 667002 (worked solution) |
| 3 | Bearing from Westfield church spire: 073 °T Distance: 1.91 nm | No. 667003 (worked solution) |
| 4 | Bearing from Bell buoy "HS": 170 °T Distance: 3.41 nm | No. 667004 (worked solution) |
| 5 | Bearing from Gannet Rock daybeacon: 282 °T Distance: 1.58 nm | No. 667005 (worked solution) |
| 6 | Bearing from Red nun "2": 068 °T Distance: 0.91 nm | No. 667006 (worked solution) |
| 7 | Bearing from Green can "1": 011 °T Distance: 0.98 nm | No. 667007 (worked solution) |
| 8 | Bearing from Red nun "2": 315 °T Distance: 4.28 nm | No. 667008 (worked solution) |