Worksheet 238 · Skill 4
Two-bearing fix
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At 0810 you take two bearings with a hand-bearing compass: Westfield church spire bears 287°M and Mill stack bears 209°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 1720 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 307°M and Kittle water tank bears 195°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
At 1205 you take two bearings with a hand-bearing compass: Heron Point Light bears 243°M and Mill stack 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 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: Mill stack bears 147°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 0755 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 087°M and Mill stack bears 164°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 0710 you take two bearings with a hand-bearing compass: Westfield church spire bears 298°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 1115 you take two bearings with a hand-bearing compass: Kittle water tank bears 144°M and Heron Point Light bears 271°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
At 0920 you take two bearings with a hand-bearing compass: Heron Point Light bears 219°M and Mill stack bears 151°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "3": 117 °T Distance: 1.64 nm | No. 238001 (worked solution) |
| 2 | Bearing from Bell buoy "HS": 186 °T Distance: 4.80 nm | No. 238002 (worked solution) |
| 3 | Bearing from Green can "1": 065 °T Distance: 1.02 nm | No. 238003 (worked solution) |
| 4 | Bearing from Green can "1": 185 °T Distance: 0.87 nm | No. 238004 (worked solution) |
| 5 | Bearing from Red nun "2": 181 °T Distance: 0.85 nm | No. 238005 (worked solution) |
| 6 | Bearing from Green can "1": 313 °T Distance: 1.46 nm | No. 238006 (worked solution) |
| 7 | Bearing from Gannet Rock daybeacon: 190 °T Distance: 1.28 nm | No. 238007 (worked solution) |
| 8 | Bearing from Red nun "2": 259 °T Distance: 1.33 nm | No. 238008 (worked solution) |