Worksheet 569 · Skill 4
Two-bearing fix
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At 1235 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 113°M and Heron Point Light bears 211°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 1115 you take two bearings with a hand-bearing compass: Westfield church spire bears 251°M and Mill stack bears 181°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 0900 you take two bearings with a hand-bearing compass: Mill stack bears 174°M and Heron Point Light bears 249°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 1125 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 298°M and Kittle water tank 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 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 1240 you take two bearings with a hand-bearing compass: Heron Point Light bears 250°M and Mill stack bears 196°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 1500 you take two bearings with a hand-bearing compass: Heron Point Light bears 199°M and Gannet Rock daybeacon bears 127°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 0840 you take two bearings with a hand-bearing compass: Heron Point Light bears 268°M and Mill stack bears 201°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 0805 you take two bearings with a hand-bearing compass: Kittle water tank bears 168°M and Heron Point Light bears 264°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 334 °T Distance: 1.79 nm | No. 569001 (worked solution) |
| 2 | Bearing from Tern Island tower: 295 °T Distance: 2.84 nm | No. 569002 (worked solution) |
| 3 | Bearing from Green can "1": 084 °T Distance: 1.06 nm | No. 569003 (worked solution) |
| 4 | Bearing from Bell buoy "HS": 173 °T Distance: 4.91 nm | No. 569004 (worked solution) |
| 5 | Bearing from Green can "3": 146 °T Distance: 0.91 nm | No. 569005 (worked solution) |
| 6 | Bearing from Green can "3": 316 °T Distance: 3.62 nm | No. 569006 (worked solution) |
| 7 | Bearing from Red nun "2": 127 °T Distance: 2.23 nm | No. 569007 (worked solution) |
| 8 | Bearing from Tern Island tower: 141 °T Distance: 3.54 nm | No. 569008 (worked solution) |