Worksheet 343 · Skill 4
Two-bearing fix
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At 1035 you take two bearings with a hand-bearing compass: Heron Point Light bears 175°M and Westfield church spire bears 236°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 0925 you take two bearings with a hand-bearing compass: Mill stack bears 163°M and Westfield church spire bears 239°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 1705 you take two bearings with a hand-bearing compass: Kittle water tank bears 143°M and Heron Point Light bears 268°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 1050 you take two bearings with a hand-bearing compass: Heron Point Light bears 194°M and Westfield church spire bears 314°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 1755 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 065°M and Westfield church spire bears 309°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 1215 you take two bearings with a hand-bearing compass: Mill stack bears 194°M and Westfield church spire bears 281°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 1315 you take two bearings with a hand-bearing compass: Heron Point Light bears 196°M and Gannet Rock daybeacon bears 100°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 1625 you take two bearings with a hand-bearing compass: Westfield church spire bears 249°M and Heron Point Light bears 194°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 Green can "1": 317 °T Distance: 3.94 nm | No. 343001 (worked solution) |
| 2 | Bearing from Red nun "2": 330 °T Distance: 3.79 nm | No. 343002 (worked solution) |
| 3 | Bearing from Gannet Rock daybeacon: 211 °T Distance: 1.11 nm | No. 343003 (worked solution) |
| 4 | Bearing from Green can "1": 284 °T Distance: 1.63 nm | No. 343004 (worked solution) |
| 5 | Bearing from Mill stack: 006 °T Distance: 1.57 nm | No. 343005 (worked solution) |
| 6 | Bearing from Tern Island tower: 219 °T Distance: 1.96 nm | No. 343006 (worked solution) |
| 7 | Bearing from Green can "1": 304 °T Distance: 1.72 nm | No. 343007 (worked solution) |
| 8 | Bearing from Red nun "2": 326 °T Distance: 3.27 nm | No. 343008 (worked solution) |