Worksheet 586 · Skill 4
Two-bearing fix
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At 1045 you take two bearings with a hand-bearing compass: Westfield church spire bears 291°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 "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 1715 you take two bearings with a hand-bearing compass: Mill stack bears 195°M and Gannet Rock daybeacon bears 068°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: Heron Point Light bears 232°M and Gannet Rock daybeacon bears 105°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 0955 you take two bearings with a hand-bearing compass: Heron Point Light bears 185°M and Gannet Rock daybeacon bears 110°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 Westfield church spire to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Westfield church spire: ________ °T Distance: ________ nm
At 1505 you take two bearings with a hand-bearing compass: Westfield church spire bears 236°M and Heron Point Light bears 178°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 0915 you take two bearings with a hand-bearing compass: Heron Point Light bears 215°M and Gannet Rock daybeacon bears 128°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 1310 you take two bearings with a hand-bearing compass: Mill stack bears 186°M and Westfield church spire bears 272°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 1345 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 121°M and Heron Point Light bears 239°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 "1": 013 °T Distance: 1.05 nm | No. 586001 (worked solution) |
| 2 | Bearing from Red nun "2": 142 °T Distance: 2.36 nm | No. 586002 (worked solution) |
| 3 | Bearing from Green can "3": 256 °T Distance: 1.09 nm | No. 586003 (worked solution) |
| 4 | Bearing from Westfield church spire: 081 °T Distance: 1.79 nm | No. 586004 (worked solution) |
| 5 | Bearing from Green can "1": 321 °T Distance: 3.94 nm | No. 586005 (worked solution) |
| 6 | Bearing from Green can "3": 329 °T Distance: 2.22 nm | No. 586006 (worked solution) |
| 7 | Bearing from Green can "3": 349 °T Distance: 0.99 nm | No. 586007 (worked solution) |
| 8 | Bearing from Tern Island tower: 224 °T Distance: 1.65 nm | No. 586008 (worked solution) |