Worksheet 687 · Skill 4
Two-bearing fix
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At 1050 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 097°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 "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 0945 you take two bearings with a hand-bearing compass: Heron Point Light bears 213°M and Gannet Rock daybeacon bears 129°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 1240 you take two bearings with a hand-bearing compass: Mill stack bears 147°M and Gannet Rock daybeacon bears 096°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 1155 you take two bearings with a hand-bearing compass: Westfield church spire bears 270°M and Mill stack bears 158°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 1310 you take two bearings with a hand-bearing compass: Kittle water tank bears 169°M and Heron Point Light bears 254°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 1705 you take two bearings with a hand-bearing compass: Mill stack bears 217°M and Kittle water tank 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 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 1000 you take two bearings with a hand-bearing compass: Kittle water tank bears 149°M and Heron Point Light bears 244°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 1610 you take two bearings with a hand-bearing compass: Heron Point Light bears 211°M and Gannet Rock daybeacon bears 092°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 Green can "3": 246 °T Distance: 2.21 nm | No. 687001 (worked solution) |
| 2 | Bearing from Green can "3": 329 °T Distance: 2.44 nm | No. 687002 (worked solution) |
| 3 | Bearing from Green can "1": 292 °T Distance: 1.30 nm | No. 687003 (worked solution) |
| 4 | Bearing from Red nun "2": 314 °T Distance: 2.48 nm | No. 687004 (worked solution) |
| 5 | Bearing from Gannet Rock daybeacon: 004 °T Distance: 1.09 nm | No. 687005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 314 °T Distance: 1.30 nm | No. 687006 (worked solution) |
| 7 | Bearing from Tern Island tower: 191 °T Distance: 1.15 nm | No. 687007 (worked solution) |
| 8 | Bearing from Green can "1": 271 °T Distance: 1.17 nm | No. 687008 (worked solution) |