Worksheet 198 · Skill 4
Two-bearing fix
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At 1015 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 099°M and Heron Point Light bears 224°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 1220 you take two bearings with a hand-bearing compass: Kittle water tank bears 155°M and Mill stack bears 226°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 1330 you take two bearings with a hand-bearing compass: Westfield church spire bears 250°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 1355 you take two bearings with a hand-bearing compass: Mill stack bears 153°M and Heron Point Light bears 243°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 1155 you take two bearings with a hand-bearing compass: Heron Point Light bears 199°M and Westfield church spire bears 312°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 0740 you take two bearings with a hand-bearing compass: Mill stack bears 201°M and Heron Point Light bears 255°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 0910 you take two bearings with a hand-bearing compass: Westfield church spire bears 264°M and Mill stack 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 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 1220 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 117°M and Heron Point Light 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 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "1": 350 °T Distance: 0.81 nm | No. 198001 (worked solution) |
| 2 | Bearing from Tern Island tower: 152 °T Distance: 2.72 nm | No. 198002 (worked solution) |
| 3 | Bearing from Red nun "2": 331 °T Distance: 3.20 nm | No. 198003 (worked solution) |
| 4 | Bearing from Red nun "2": 220 °T Distance: 1.12 nm | No. 198004 (worked solution) |
| 5 | Bearing from Green can "1": 286 °T Distance: 1.47 nm | No. 198005 (worked solution) |
| 6 | Bearing from Green can "3": 145 °T Distance: 1.34 nm | No. 198006 (worked solution) |
| 7 | Bearing from Green can "3": 353 °T Distance: 1.76 nm | No. 198007 (worked solution) |
| 8 | Bearing from Westfield church spire: 063 °T Distance: 2.48 nm | No. 198008 (worked solution) |