Worksheet 672 · Skill 4
Two-bearing fix
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At 1120 you take two bearings with a hand-bearing compass: Mill stack bears 182°M and Gannet Rock daybeacon bears 091°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 1500 you take two bearings with a hand-bearing compass: Westfield church spire bears 243°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 0705 you take two bearings with a hand-bearing compass: Heron Point Light bears 186°M and Westfield church spire bears 244°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 0755 you take two bearings with a hand-bearing compass: Kittle water tank bears 162°M and Mill stack bears 217°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
At 1425 you take two bearings with a hand-bearing compass: Heron Point Light bears 181°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 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 1700 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 095°M and Heron Point Light bears 167°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 1525 you take two bearings with a hand-bearing compass: Heron Point Light bears 274°M and Mill stack 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 0805 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 130°M and Mill stack bears 217°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": 114 °T Distance: 1.00 nm | No. 672001 (worked solution) |
| 2 | Bearing from Green can "3": 316 °T Distance: 3.61 nm | No. 672002 (worked solution) |
| 3 | Bearing from Red nun "2": 316 °T Distance: 3.58 nm | No. 672003 (worked solution) |
| 4 | Bearing from Gannet Rock daybeacon: 335 °T Distance: 1.55 nm | No. 672004 (worked solution) |
| 5 | Bearing from Westfield church spire: 098 °T Distance: 1.58 nm | No. 672005 (worked solution) |
| 6 | Bearing from Westfield church spire: 143 °T Distance: 2.10 nm | No. 672006 (worked solution) |
| 7 | Bearing from Red nun "2": 131 °T Distance: 2.71 nm | No. 672007 (worked solution) |
| 8 | Bearing from Tern Island tower: 158 °T Distance: 1.95 nm | No. 672008 (worked solution) |