Worksheet 185 · Skill 4
Two-bearing fix
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At 1040 you take two bearings with a hand-bearing compass: Heron Point Light bears 226°M and Gannet Rock daybeacon bears 135°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 1755 you take two bearings with a hand-bearing compass: Westfield church spire bears 299°M and Mill stack bears 220°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: Mill stack bears 161°M and Gannet Rock daybeacon bears 071°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 1005 you take two bearings with a hand-bearing compass: Kittle water tank bears 148°M and Westfield church spire bears 265°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 1440 you take two bearings with a hand-bearing compass: Mill stack bears 160°M and Gannet Rock daybeacon bears 091°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 1445 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 277°M and Kittle water tank bears 207°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 0735 you take two bearings with a hand-bearing compass: Mill stack bears 222°M and Heron Point Light bears 278°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 0750 you take two bearings with a hand-bearing compass: Heron Point Light bears 218°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 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: 276 °T Distance: 1.63 nm | No. 185001 (worked solution) |
| 2 | Bearing from Gannet Rock daybeacon: 236 °T Distance: 2.55 nm | No. 185002 (worked solution) |
| 3 | Bearing from Green can "1": 146 °T Distance: 1.85 nm | No. 185003 (worked solution) |
| 4 | Bearing from Tern Island tower: 277 °T Distance: 1.39 nm | No. 185004 (worked solution) |
| 5 | Bearing from Green can "3": 230 °T Distance: 2.24 nm | No. 185005 (worked solution) |
| 6 | Bearing from Bell buoy "HS": 176 °T Distance: 3.81 nm | No. 185006 (worked solution) |
| 7 | Bearing from Red nun "2": 132 °T Distance: 3.13 nm | No. 185007 (worked solution) |
| 8 | Bearing from Green can "1": 326 °T Distance: 0.90 nm | No. 185008 (worked solution) |