Worksheet 842 · Skill 4
Two-bearing fix
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At 0945 you take two bearings with a hand-bearing compass: Kittle water tank bears 165°M and Heron Point Light bears 267°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 1705 you take two bearings with a hand-bearing compass: Westfield church spire bears 259°M and Heron Point Light bears 204°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 0950 you take two bearings with a hand-bearing compass: Heron Point Light bears 236°M and Gannet Rock daybeacon bears 122°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 1340 you take two bearings with a hand-bearing compass: Mill stack bears 170°M and Gannet Rock daybeacon bears 097°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 0815 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 059°M and Westfield church spire bears 297°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 "3" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Green can "3": ________ °T Distance: ________ nm
At 1755 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 256°M and Kittle water tank bears 196°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 1305 you take two bearings with a hand-bearing compass: Mill stack bears 192°M and Westfield church spire bears 256°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 1405 you take two bearings with a hand-bearing compass: Heron Point Light bears 217°M and Mill stack bears 148°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Tern Island tower: 144 °T Distance: 3.87 nm | No. 842001 (worked solution) |
| 2 | Bearing from Red nun "2": 337 °T Distance: 2.67 nm | No. 842002 (worked solution) |
| 3 | Bearing from Tern Island tower: 234 °T Distance: 1.72 nm | No. 842003 (worked solution) |
| 4 | Bearing from Green can "1": 048 °T Distance: 0.90 nm | No. 842004 (worked solution) |
| 5 | Bearing from Green can "3": 140 °T Distance: 2.87 nm | No. 842005 (worked solution) |
| 6 | Bearing from Bell buoy "HS": 184 °T Distance: 3.04 nm | No. 842006 (worked solution) |
| 7 | Bearing from Tern Island tower: 318 °T Distance: 1.71 nm | No. 842007 (worked solution) |
| 8 | Bearing from Green can "1": 283 °T Distance: 0.90 nm | No. 842008 (worked solution) |