Worksheet 927 · Skill 4
Two-bearing fix
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At 1535 you take two bearings with a hand-bearing compass: Heron Point Light bears 250°M and Kittle water tank bears 164°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 1025 you take two bearings with a hand-bearing compass: Mill stack bears 214°M and Kittle water tank bears 154°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 1145 you take two bearings with a hand-bearing compass: Westfield church spire bears 293°M and Heron Point Light bears 194°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 1745 you take two bearings with a hand-bearing compass: Heron Point Light bears 176°M and Gannet Rock daybeacon bears 101°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 1740 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 099°M and Mill stack bears 198°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 0925 you take two bearings with a hand-bearing compass: Heron Point Light bears 191°M and Gannet Rock daybeacon bears 093°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 1505 you take two bearings with a hand-bearing compass: Heron Point Light bears 187°M and Gannet Rock daybeacon bears 111°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 1145 you take two bearings with a hand-bearing compass: Mill stack bears 204°M and Westfield church spire bears 288°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Gannet Rock daybeacon: 341 °T Distance: 1.50 nm | No. 927001 (worked solution) |
| 2 | Bearing from Gannet Rock daybeacon: 310 °T Distance: 1.57 nm | No. 927002 (worked solution) |
| 3 | Bearing from Green can "1": 313 °T Distance: 1.99 nm | No. 927003 (worked solution) |
| 4 | Bearing from Westfield church spire: 122 °T Distance: 1.65 nm | No. 927004 (worked solution) |
| 5 | Bearing from Green can "3": 141 °T Distance: 1.02 nm | No. 927005 (worked solution) |
| 6 | Bearing from Green can "1": 274 °T Distance: 1.70 nm | No. 927006 (worked solution) |
| 7 | Bearing from Westfield church spire: 078 °T Distance: 1.94 nm | No. 927007 (worked solution) |
| 8 | Bearing from Green can "3": 127 °T Distance: 1.33 nm | No. 927008 (worked solution) |