Worksheet 919 · Skill 4
Two-bearing fix
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At 1355 you take two bearings with a hand-bearing compass: Heron Point Light bears 267°M and Mill stack bears 203°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 1020 you take two bearings with a hand-bearing compass: Heron Point Light bears 207°M and Mill stack bears 157°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 0930 you take two bearings with a hand-bearing compass: Mill stack bears 177°M and Gannet Rock daybeacon bears 090°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 1305 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 113°M and Heron Point Light bears 193°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 1420 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 106°M and Heron Point Light bears 215°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 1515 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 119°M and Heron Point Light bears 228°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 1555 you take two bearings with a hand-bearing compass: Mill stack bears 190°M and Westfield church spire bears 277°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 1700 you take two bearings with a hand-bearing compass: Kittle water tank bears 148°M and Heron Point Light bears 260°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 Green can "3": 164 °T Distance: 2.22 nm | No. 919001 (worked solution) |
| 2 | Bearing from Green can "1": 330 °T Distance: 1.59 nm | No. 919002 (worked solution) |
| 3 | Bearing from Red nun "2": 129 °T Distance: 0.82 nm | No. 919003 (worked solution) |
| 4 | Bearing from Westfield church spire: 077 °T Distance: 2.38 nm | No. 919004 (worked solution) |
| 5 | Bearing from Red nun "2": 316 °T Distance: 1.24 nm | No. 919005 (worked solution) |
| 6 | Bearing from Green can "3": 324 °T Distance: 0.91 nm | No. 919006 (worked solution) |
| 7 | Bearing from Tern Island tower: 234 °T Distance: 1.89 nm | No. 919007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 265 °T Distance: 0.96 nm | No. 919008 (worked solution) |