Worksheet 560 · Skill 4
Two-bearing fix
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At 1040 you take two bearings with a hand-bearing compass: Westfield church spire bears 229°M and Heron Point Light bears 175°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 0900 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 091°M and Heron Point Light bears 214°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 1320 you take two bearings with a hand-bearing compass: Heron Point Light bears 221°M and Mill stack bears 166°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 1315 you take two bearings with a hand-bearing compass: Westfield church spire bears 271°M and Heron Point Light bears 174°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 0950 you take two bearings with a hand-bearing compass: Kittle water tank bears 170°M and Heron Point Light bears 261°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 1040 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 123°M and Heron Point Light bears 218°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 1145 you take two bearings with a hand-bearing compass: Heron Point Light bears 207°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 0830 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 251°M and Kittle water tank 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 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": 318 °T Distance: 4.11 nm | No. 560001 (worked solution) |
| 2 | Bearing from Green can "1": 266 °T Distance: 1.13 nm | No. 560002 (worked solution) |
| 3 | Bearing from Red nun "2": 326 °T Distance: 0.94 nm | No. 560003 (worked solution) |
| 4 | Bearing from Green can "1": 309 °T Distance: 3.36 nm | No. 560004 (worked solution) |
| 5 | Bearing from Tern Island tower: 136 °T Distance: 3.21 nm | No. 560005 (worked solution) |
| 6 | Bearing from Green can "3": 320 °T Distance: 1.78 nm | No. 560006 (worked solution) |
| 7 | Bearing from Green can "3": 323 °T Distance: 2.98 nm | No. 560007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 195 °T Distance: 3.26 nm | No. 560008 (worked solution) |