Worksheet 338 · Skill 4
Two-bearing fix
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At 1445 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 107°M and Heron Point Light bears 226°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 0735 you take two bearings with a hand-bearing compass: Heron Point Light bears 214°M and Gannet Rock daybeacon bears 095°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 0925 you take two bearings with a hand-bearing compass: Mill stack bears 171°M and Westfield church spire bears 300°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 0755 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 085°M and Mill stack bears 161°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 1600 you take two bearings with a hand-bearing compass: Heron Point Light bears 209°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 1725 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 118°M and Heron Point Light bears 189°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 1345 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 098°M and Heron Point Light bears 173°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 0710 you take two bearings with a hand-bearing compass: Heron Point Light bears 203°M and Gannet Rock daybeacon bears 124°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 354 °T Distance: 0.87 nm | No. 338001 (worked solution) |
| 2 | Bearing from Green can "1": 293 °T Distance: 0.97 nm | No. 338002 (worked solution) |
| 3 | Bearing from Green can "1": 087 °T Distance: 0.90 nm | No. 338003 (worked solution) |
| 4 | Bearing from Red nun "2": 185 °T Distance: 1.05 nm | No. 338004 (worked solution) |
| 5 | Bearing from Green can "3": 325 °T Distance: 2.79 nm | No. 338005 (worked solution) |
| 6 | Bearing from Westfield church spire: 058 °T Distance: 2.44 nm | No. 338006 (worked solution) |
| 7 | Bearing from Westfield church spire: 133 °T Distance: 1.86 nm | No. 338007 (worked solution) |
| 8 | Bearing from Green can "3": 312 °T Distance: 3.06 nm | No. 338008 (worked solution) |