Worksheet 580 · Skill 4
Two-bearing fix
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At 0740 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 130°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 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 1655 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 114°M and Mill stack bears 186°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: Westfield church spire bears 303°M and Heron Point Light bears 206°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 1630 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 088°M and Westfield church spire bears 338°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 1535 you take two bearings with a hand-bearing compass: Heron Point Light bears 176°M and Westfield church spire 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 1130 you take two bearings with a hand-bearing compass: Westfield church spire bears 265°M and Heron Point Light bears 210°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 1715 you take two bearings with a hand-bearing compass: Westfield church spire bears 234°M and Gannet Rock daybeacon bears 130°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 1535 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 131°M and Heron Point Light bears 199°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 Green can "3": 324 °T Distance: 3.25 nm | No. 580001 (worked solution) |
| 2 | Bearing from Red nun "2": 045 °T Distance: 1.59 nm | No. 580002 (worked solution) |
| 3 | Bearing from Green can "1": 304 °T Distance: 1.29 nm | No. 580003 (worked solution) |
| 4 | Bearing from Heron Point Light: 330 °T Distance: 0.91 nm | No. 580004 (worked solution) |
| 5 | Bearing from Green can "1": 320 °T Distance: 4.18 nm | No. 580005 (worked solution) |
| 6 | Bearing from Red nun "2": 344 °T Distance: 2.27 nm | No. 580006 (worked solution) |
| 7 | Bearing from Green can "3": 319 °T Distance: 4.19 nm | No. 580007 (worked solution) |
| 8 | Bearing from Green can "3": 322 °T Distance: 3.93 nm | No. 580008 (worked solution) |