Worksheet 454 · Skill 4
Two-bearing fix
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At 1400 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 077°M and Mill stack bears 199°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 1350 you take two bearings with a hand-bearing compass: Westfield church spire bears 274°M and Mill stack bears 182°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 1420 you take two bearings with a hand-bearing compass: Mill stack bears 178°M and Gannet Rock daybeacon bears 112°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 1010 you take two bearings with a hand-bearing compass: Heron Point Light bears 172°M and Gannet Rock daybeacon bears 103°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 1045 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 096°M and Mill stack bears 146°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 0825 you take two bearings with a hand-bearing compass: Westfield church spire bears 297°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 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 1440 you take two bearings with a hand-bearing compass: Westfield church spire bears 316°M and Heron Point Light 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 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 0825 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 119°M and Mill stack bears 216°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 Green can "3": 167 °T Distance: 2.06 nm | No. 454001 (worked solution) |
| 2 | Bearing from Green can "3": 323 °T Distance: 0.95 nm | No. 454002 (worked solution) |
| 3 | Bearing from Green can "3": 287 °T Distance: 0.91 nm | No. 454003 (worked solution) |
| 4 | Bearing from Westfield church spire: 116 °T Distance: 1.27 nm | No. 454004 (worked solution) |
| 5 | Bearing from Green can "1": 290 °T Distance: 1.40 nm | No. 454005 (worked solution) |
| 6 | Bearing from Green can "3": 169 °T Distance: 1.68 nm | No. 454006 (worked solution) |
| 7 | Bearing from Green can "1": 263 °T Distance: 1.08 nm | No. 454007 (worked solution) |
| 8 | Bearing from Tern Island tower: 165 °T Distance: 2.06 nm | No. 454008 (worked solution) |