Worksheet 204 · Skill 4
Two-bearing fix
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At 1505 you take two bearings with a hand-bearing compass: Mill stack bears 149°M and Westfield church spire bears 223°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 1715 you take two bearings with a hand-bearing compass: Westfield church spire bears 288°M and Mill stack 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
At 1255 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 314°M and Kittle water tank bears 220°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 1535 you take two bearings with a hand-bearing compass: Kittle water tank bears 180°M and Gannet Rock daybeacon bears 239°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 1710 you take two bearings with a hand-bearing compass: Westfield church spire bears 243°M and Heron Point Light bears 192°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 0910 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 123°M and Westfield church spire bears 238°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 1245 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 192°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 0950 you take two bearings with a hand-bearing compass: Westfield church spire bears 279°M and Mill stack bears 191°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 "1": 315 °T Distance: 4.22 nm | No. 204001 (worked solution) |
| 2 | Bearing from Green can "3": 138 °T Distance: 0.97 nm | No. 204002 (worked solution) |
| 3 | Bearing from Bell buoy "HS": 179 °T Distance: 5.49 nm | No. 204003 (worked solution) |
| 4 | Bearing from Tern Island tower: 123 °T Distance: 3.26 nm | No. 204004 (worked solution) |
| 5 | Bearing from Red nun "2": 327 °T Distance: 3.57 nm | No. 204005 (worked solution) |
| 6 | Bearing from Red nun "2": 329 °T Distance: 3.83 nm | No. 204006 (worked solution) |
| 7 | Bearing from Red nun "2": 056 °T Distance: 1.95 nm | No. 204007 (worked solution) |
| 8 | Bearing from Red nun "2": 052 °T Distance: 1.95 nm | No. 204008 (worked solution) |