Worksheet 319 · Skill 4
Two-bearing fix
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At 0905 you take two bearings with a hand-bearing compass: Westfield church spire bears 304°M and Heron Point Light bears 204°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: Mill stack bears 186°M and Westfield church spire bears 254°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 1355 you take two bearings with a hand-bearing compass: Heron Point Light bears 193°M and Gannet Rock daybeacon bears 120°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 0955 you take two bearings with a hand-bearing compass: Mill stack bears 178°M and Heron Point Light 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 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 0755 you take two bearings with a hand-bearing compass: Heron Point Light bears 249°M and Mill stack bears 165°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 1525 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 112°M and Heron Point Light bears 240°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 1440 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 091°M and Westfield church spire bears 333°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 Heron Point Light to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Heron Point Light: ________ °T Distance: ________ nm
At 1130 you take two bearings with a hand-bearing compass: Westfield church spire bears 290°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "1": 301 °T Distance: 1.35 nm | No. 319001 (worked solution) |
| 2 | Bearing from Tern Island tower: 301 °T Distance: 2.26 nm | No. 319002 (worked solution) |
| 3 | Bearing from Westfield church spire: 059 °T Distance: 2.81 nm | No. 319003 (worked solution) |
| 4 | Bearing from Red nun "2": 148 °T Distance: 1.55 nm | No. 319004 (worked solution) |
| 5 | Bearing from Green can "3": 219 °T Distance: 2.08 nm | No. 319005 (worked solution) |
| 6 | Bearing from Red nun "2": 058 °T Distance: 1.70 nm | No. 319006 (worked solution) |
| 7 | Bearing from Heron Point Light: 341 °T Distance: 1.27 nm | No. 319007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 256 °T Distance: 1.48 nm | No. 319008 (worked solution) |