Worksheet 98 · Skill 4
Two-bearing fix
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At 0730 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 097°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 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 0825 you take two bearings with a hand-bearing compass: Heron Point Light bears 252°M and Gannet Rock daybeacon bears 159°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 1045 you take two bearings with a hand-bearing compass: Kittle water tank bears 147°M and Westfield church spire 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 0910 you take two bearings with a hand-bearing compass: Mill stack bears 155°M and Westfield church spire bears 235°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 0815 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 102°M and Heron Point Light bears 197°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 1645 you take two bearings with a hand-bearing compass: Westfield church spire bears 321°M and Gannet Rock daybeacon bears 082°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 1200 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 129°M and Westfield church spire bears 252°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 1055 you take two bearings with a hand-bearing compass: Heron Point Light bears 245°M and Gannet Rock daybeacon bears 123°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": 239 °T Distance: 1.77 nm | No. 98001 (worked solution) |
| 2 | Bearing from Tern Island tower: 139 °T Distance: 1.87 nm | No. 98002 (worked solution) |
| 3 | Bearing from Tern Island tower: 285 °T Distance: 1.87 nm | No. 98003 (worked solution) |
| 4 | Bearing from Red nun "2": 314 °T Distance: 3.93 nm | No. 98004 (worked solution) |
| 5 | Bearing from Green can "1": 312 °T Distance: 1.79 nm | No. 98005 (worked solution) |
| 6 | Bearing from Green can "1": 210 °T Distance: 1.16 nm | No. 98006 (worked solution) |
| 7 | Bearing from Green can "3": 324 °T Distance: 2.87 nm | No. 98007 (worked solution) |
| 8 | Bearing from Green can "3": 081 °T Distance: 1.27 nm | No. 98008 (worked solution) |