Worksheet 674 · Skill 4
Two-bearing fix
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At 1305 you take two bearings with a hand-bearing compass: Heron Point Light bears 205°M and Gannet Rock daybeacon bears 126°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 1325 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 088°M and Mill stack bears 142°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 0845 you take two bearings with a hand-bearing compass: Heron Point Light bears 175°M and Gannet Rock daybeacon bears 096°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
At 1110 you take two bearings with a hand-bearing compass: Westfield church spire bears 256°M and Mill stack bears 187°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 1555 you take two bearings with a hand-bearing compass: Westfield church spire bears 289°M and Heron Point Light bears 200°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 1625 you take two bearings with a hand-bearing compass: Westfield church spire bears 292°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 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 1325 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 105°M and Mill stack bears 195°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 0800 you take two bearings with a hand-bearing compass: Westfield church spire bears 294°M and Heron Point Light bears 242°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "3": 317 °T Distance: 2.99 nm | No. 674001 (worked solution) |
| 2 | Bearing from Green can "1": 246 °T Distance: 0.99 nm | No. 674002 (worked solution) |
| 3 | Bearing from Westfield church spire: 136 °T Distance: 2.15 nm | No. 674003 (worked solution) |
| 4 | Bearing from Tern Island tower: 299 °T Distance: 2.06 nm | No. 674004 (worked solution) |
| 5 | Bearing from Green can "1": 322 °T Distance: 1.85 nm | No. 674005 (worked solution) |
| 6 | Bearing from Green can "3": 148 °T Distance: 1.41 nm | No. 674006 (worked solution) |
| 7 | Bearing from Red nun "2": 077 °T Distance: 1.83 nm | No. 674007 (worked solution) |
| 8 | Bearing from Green can "1": 061 °T Distance: 1.15 nm | No. 674008 (worked solution) |