Worksheet 457 · Skill 4
Two-bearing fix
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At 1350 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 131°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 1540 you take two bearings with a hand-bearing compass: Heron Point Light bears 213°M and Westfield church spire bears 294°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 1700 you take two bearings with a hand-bearing compass: Heron Point Light bears 235°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 1520 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 121°M and Heron Point Light bears 222°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 1230 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 091°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 1345 you take two bearings with a hand-bearing compass: Mill stack bears 201°M and Westfield church spire bears 302°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 1300 you take two bearings with a hand-bearing compass: Westfield church spire bears 246°M and Gannet Rock daybeacon bears 132°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 1330 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 131°M and Heron Point Light bears 198°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": 326 °T Distance: 3.24 nm | No. 457001 (worked solution) |
| 2 | Bearing from Green can "1": 330 °T Distance: 1.21 nm | No. 457002 (worked solution) |
| 3 | Bearing from Green can "1": 040 °T Distance: 1.23 nm | No. 457003 (worked solution) |
| 4 | Bearing from Green can "3": 319 °T Distance: 1.41 nm | No. 457004 (worked solution) |
| 5 | Bearing from Green can "1": 265 °T Distance: 2.09 nm | No. 457005 (worked solution) |
| 6 | Bearing from Red nun "2": 129 °T Distance: 2.27 nm | No. 457006 (worked solution) |
| 7 | Bearing from Green can "3": 328 °T Distance: 3.31 nm | No. 457007 (worked solution) |
| 8 | Bearing from Green can "3": 321 °T Distance: 4.04 nm | No. 457008 (worked solution) |