Worksheet 153 · Skill 4
Two-bearing fix
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At 1240 you take two bearings with a hand-bearing compass: Westfield church spire bears 236°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 1100 you take two bearings with a hand-bearing compass: Westfield church spire bears 265°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 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 0720 you take two bearings with a hand-bearing compass: Kittle water tank bears 147°M and Heron Point Light bears 224°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 269°M and Mill stack bears 143°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 0700 you take two bearings with a hand-bearing compass: Heron Point Light bears 219°M and Gannet Rock daybeacon bears 117°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 1055 you take two bearings with a hand-bearing compass: Mill stack bears 180°M and Westfield church spire bears 247°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 1455 you take two bearings with a hand-bearing compass: Westfield church spire bears 287°M and Heron Point Light bears 219°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 0800 you take two bearings with a hand-bearing compass: Mill stack bears 212°M and Gannet Rock daybeacon bears 137°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 Green can "3": 318 °T Distance: 4.05 nm | No. 153001 (worked solution) |
| 2 | Bearing from Red nun "2": 311 °T Distance: 2.83 nm | No. 153002 (worked solution) |
| 3 | Bearing from Tern Island tower: 282 °T Distance: 1.77 nm | No. 153003 (worked solution) |
| 4 | Bearing from Green can "1": 184 °T Distance: 1.16 nm | No. 153004 (worked solution) |
| 5 | Bearing from Green can "3": 303 °T Distance: 1.60 nm | No. 153005 (worked solution) |
| 6 | Bearing from Tern Island tower: 299 °T Distance: 3.14 nm | No. 153006 (worked solution) |
| 7 | Bearing from Red nun "2": 318 °T Distance: 1.02 nm | No. 153007 (worked solution) |
| 8 | Bearing from Tern Island tower: 162 °T Distance: 1.44 nm | No. 153008 (worked solution) |