Worksheet 41 · Skill 4
Two-bearing fix
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At 1540 you take two bearings with a hand-bearing compass: Kittle water tank bears 200°M and Gannet Rock daybeacon 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 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 0820 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 238°M and Kittle water tank bears 184°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 1550 you take two bearings with a hand-bearing compass: Westfield church spire bears 300°M and Heron Point Light bears 221°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 1235 you take two bearings with a hand-bearing compass: Heron Point Light bears 258°M and Mill stack bears 185°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 1415 you take two bearings with a hand-bearing compass: Mill stack bears 145°M and Gannet Rock daybeacon bears 095°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 1145 you take two bearings with a hand-bearing compass: Mill stack bears 169°M and Gannet Rock daybeacon bears 106°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 1435 you take two bearings with a hand-bearing compass: Heron Point Light bears 251°M and Gannet Rock daybeacon bears 178°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 1225 you take two bearings with a hand-bearing compass: Heron Point Light bears 271°M and Kittle water tank bears 150°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 Gannet Rock daybeacon to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Gannet Rock daybeacon: ________ °T Distance: ________ nm
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Bell buoy "HS": 178 °T Distance: 2.87 nm | No. 41001 (worked solution) |
| 2 | Bearing from Bell buoy "HS": 200 °T Distance: 3.01 nm | No. 41002 (worked solution) |
| 3 | Bearing from Red nun "2": 271 °T Distance: 1.04 nm | No. 41003 (worked solution) |
| 4 | Bearing from Red nun "2": 126 °T Distance: 1.36 nm | No. 41004 (worked solution) |
| 5 | Bearing from Green can "1": 285 °T Distance: 1.37 nm | No. 41005 (worked solution) |
| 6 | Bearing from Red nun "2": 342 °T Distance: 0.84 nm | No. 41006 (worked solution) |
| 7 | Bearing from Tern Island tower: 125 °T Distance: 1.92 nm | No. 41007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 177 °T Distance: 1.24 nm | No. 41008 (worked solution) |