Worksheet 456 · Skill 4
Two-bearing fix
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At 1130 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 105°M and Heron Point Light bears 177°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 0715 you take two bearings with a hand-bearing compass: Kittle water tank bears 199°M and Gannet Rock daybeacon bears 269°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 1335 you take two bearings with a hand-bearing compass: Mill stack bears 185°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 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 1240 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 129°M and Heron Point Light bears 230°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 1315 you take two bearings with a hand-bearing compass: Mill stack bears 161°M and Westfield church spire bears 257°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 1620 you take two bearings with a hand-bearing compass: Mill stack bears 182°M and Gannet Rock daybeacon bears 117°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 1150 you take two bearings with a hand-bearing compass: Mill stack bears 170°M and Gannet Rock daybeacon bears 100°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 1720 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 120°M and Mill stack 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 "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 Westfield church spire: 103 °T Distance: 1.39 nm | No. 456001 (worked solution) |
| 2 | Bearing from Bell buoy "HS": 182 °T Distance: 3.51 nm | No. 456002 (worked solution) |
| 3 | Bearing from Red nun "2": 132 °T Distance: 1.49 nm | No. 456003 (worked solution) |
| 4 | Bearing from Green can "3": 006 °T Distance: 1.21 nm | No. 456004 (worked solution) |
| 5 | Bearing from Red nun "2": 323 °T Distance: 2.91 nm | No. 456005 (worked solution) |
| 6 | Bearing from Red nun "2": 027 °T Distance: 1.65 nm | No. 456006 (worked solution) |
| 7 | Bearing from Green can "1": 035 °T Distance: 1.04 nm | No. 456007 (worked solution) |
| 8 | Bearing from Green can "3": 089 °T Distance: 1.32 nm | No. 456008 (worked solution) |