Worksheet 990 · Skill 4
Two-bearing fix
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At 1415 you take two bearings with a hand-bearing compass: Mill stack bears 192°M and Heron Point Light bears 269°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 1100 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 128°M and Westfield church spire bears 240°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 0945 you take two bearings with a hand-bearing compass: Westfield church spire bears 269°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 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: Mill stack bears 218°M and Kittle water tank bears 162°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 1745 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 133°M and Heron Point Light bears 197°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 1405 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 277°M and Kittle water tank bears 214°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 1200 you take two bearings with a hand-bearing compass: Westfield church spire bears 323°M and Heron Point Light bears 258°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: Mill stack bears 194°M and Westfield church spire bears 305°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 136 °T Distance: 2.02 nm | No. 990001 (worked solution) |
| 2 | Bearing from Green can "3": 317 °T Distance: 3.79 nm | No. 990002 (worked solution) |
| 3 | Bearing from Green can "3": 356 °T Distance: 1.28 nm | No. 990003 (worked solution) |
| 4 | Bearing from Gannet Rock daybeacon: 335 °T Distance: 1.42 nm | No. 990004 (worked solution) |
| 5 | Bearing from Westfield church spire: 045 °T Distance: 4.27 nm | No. 990005 (worked solution) |
| 6 | Bearing from Bell buoy "HS": 169 °T Distance: 3.87 nm | No. 990006 (worked solution) |
| 7 | Bearing from Green can "1": 216 °T Distance: 1.29 nm | No. 990007 (worked solution) |
| 8 | Bearing from Red nun "2": 139 °T Distance: 2.20 nm | No. 990008 (worked solution) |