Worksheet 215 · Skill 4
Two-bearing fix
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At 1225 you take two bearings with a hand-bearing compass: Kittle water tank bears 194°M and Gannet Rock daybeacon bears 249°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 1000 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 121°M and Heron Point Light bears 237°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 0950 you take two bearings with a hand-bearing compass: Heron Point Light bears 245°M and Gannet Rock daybeacon bears 121°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 1500 you take two bearings with a hand-bearing compass: Mill stack bears 162°M and Gannet Rock daybeacon bears 106°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 1200 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 128°M and Mill stack bears 179°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 1700 you take two bearings with a hand-bearing compass: Westfield church spire bears 307°M and Mill stack bears 203°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 1315 you take two bearings with a hand-bearing compass: Mill stack bears 173°M and Heron Point Light bears 243°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 1530 you take two bearings with a hand-bearing compass: Kittle water tank bears 154°M and Mill stack bears 223°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Bell buoy "HS": 186 °T Distance: 2.81 nm | No. 215001 (worked solution) |
| 2 | Bearing from Tern Island tower: 231 °T Distance: 1.74 nm | No. 215002 (worked solution) |
| 3 | Bearing from Green can "3": 083 °T Distance: 1.17 nm | No. 215003 (worked solution) |
| 4 | Bearing from Red nun "2": 314 °T Distance: 1.32 nm | No. 215004 (worked solution) |
| 5 | Bearing from Green can "3": 331 °T Distance: 2.06 nm | No. 215005 (worked solution) |
| 6 | Bearing from Red nun "2": 141 °T Distance: 2.65 nm | No. 215006 (worked solution) |
| 7 | Bearing from Green can "1": 065 °T Distance: 1.02 nm | No. 215007 (worked solution) |
| 8 | Bearing from Tern Island tower: 154 °T Distance: 2.48 nm | No. 215008 (worked solution) |