Worksheet 949 · Skill 4
Two-bearing fix
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At 1740 you take two bearings with a hand-bearing compass: Heron Point Light bears 255°M and Kittle water tank bears 165°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 0825 you take two bearings with a hand-bearing compass: Westfield church spire bears 257°M and Gannet Rock daybeacon bears 134°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 1735 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 114°M and Heron Point Light bears 184°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 1230 you take two bearings with a hand-bearing compass: Heron Point Light bears 205°M and Westfield church spire bears 290°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 1435 you take two bearings with a hand-bearing compass: Kittle water tank bears 144°M and Heron Point Light bears 248°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 1035 you take two bearings with a hand-bearing compass: Westfield church spire bears 297°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 1115 you take two bearings with a hand-bearing compass: Heron Point Light bears 261°M and Mill stack bears 147°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 0850 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 087°M and Mill stack bears 177°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 Gannet Rock daybeacon: 350 °T Distance: 0.86 nm | No. 949001 (worked solution) |
| 2 | Bearing from Green can "3": 343 °T Distance: 2.39 nm | No. 949002 (worked solution) |
| 3 | Bearing from Westfield church spire: 063 °T Distance: 1.89 nm | No. 949003 (worked solution) |
| 4 | Bearing from Green can "1": 326 °T Distance: 1.63 nm | No. 949004 (worked solution) |
| 5 | Bearing from Green can "3": 094 °T Distance: 1.36 nm | No. 949005 (worked solution) |
| 6 | Bearing from Green can "3": 163 °T Distance: 1.80 nm | No. 949006 (worked solution) |
| 7 | Bearing from Green can "1": 183 °T Distance: 0.90 nm | No. 949007 (worked solution) |
| 8 | Bearing from Red nun "2": 137 °T Distance: 0.99 nm | No. 949008 (worked solution) |