Worksheet 377 · Skill 4
Two-bearing fix
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At 0805 you take two bearings with a hand-bearing compass: Kittle water tank bears 153°M and Heron Point Light bears 250°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 1000 you take two bearings with a hand-bearing compass: Mill stack bears 151°M and Heron Point Light 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 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 1000 you take two bearings with a hand-bearing compass: Kittle water tank bears 212°M and Gannet Rock daybeacon bears 303°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 1255 you take two bearings with a hand-bearing compass: Westfield church spire bears 294°M and Mill stack bears 185°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: Mill stack bears 178°M and Westfield church spire bears 257°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 1035 you take two bearings with a hand-bearing compass: Westfield church spire bears 314°M and Gannet Rock daybeacon bears 076°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 1500 you take two bearings with a hand-bearing compass: Westfield church spire bears 301°M and Mill stack bears 201°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 1535 you take two bearings with a hand-bearing compass: Mill stack bears 214°M and Westfield church spire bears 282°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Tern Island tower: 162 °T Distance: 1.58 nm | No. 377001 (worked solution) |
| 2 | Bearing from Red nun "2": 203 °T Distance: 1.40 nm | No. 377002 (worked solution) |
| 3 | Bearing from Bell buoy "HS": 179 °T Distance: 4.91 nm | No. 377003 (worked solution) |
| 4 | Bearing from Red nun "2": 103 °T Distance: 1.11 nm | No. 377004 (worked solution) |
| 5 | Bearing from Green can "3": 331 °T Distance: 2.41 nm | No. 377005 (worked solution) |
| 6 | Bearing from Green can "1": 154 °T Distance: 1.38 nm | No. 377006 (worked solution) |
| 7 | Bearing from Red nun "2": 126 °T Distance: 2.22 nm | No. 377007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 298 °T Distance: 1.53 nm | No. 377008 (worked solution) |