Worksheet 449 · Skill 4
Two-bearing fix
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At 1605 you take two bearings with a hand-bearing compass: Westfield church spire bears 316°M and Gannet Rock daybeacon bears 082°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 1235 you take two bearings with a hand-bearing compass: Mill stack bears 173°M and Gannet Rock daybeacon bears 083°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 1020 you take two bearings with a hand-bearing compass: Heron Point Light bears 196°M and Gannet Rock daybeacon bears 118°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 0850 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 131°M and Westfield church spire bears 244°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 1745 you take two bearings with a hand-bearing compass: Westfield church spire bears 267°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 1735 you take two bearings with a hand-bearing compass: Westfield church spire bears 291°M and Mill stack 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 "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 1340 you take two bearings with a hand-bearing compass: Heron Point Light bears 209°M and Mill stack bears 149°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 1250 you take two bearings with a hand-bearing compass: Kittle water tank bears 181°M and Gannet Rock daybeacon bears 231°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "1": 189 °T Distance: 0.89 nm | No. 449001 (worked solution) |
| 2 | Bearing from Red nun "2": 153 °T Distance: 1.19 nm | No. 449002 (worked solution) |
| 3 | Bearing from Westfield church spire: 067 °T Distance: 2.83 nm | No. 449003 (worked solution) |
| 4 | Bearing from Green can "3": 324 °T Distance: 3.47 nm | No. 449004 (worked solution) |
| 5 | Bearing from Red nun "2": 321 °T Distance: 2.43 nm | No. 449005 (worked solution) |
| 6 | Bearing from Green can "3": 225 °T Distance: 1.01 nm | No. 449006 (worked solution) |
| 7 | Bearing from Green can "1": 297 °T Distance: 1.15 nm | No. 449007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 204 °T Distance: 3.04 nm | No. 449008 (worked solution) |