Worksheet 387 · Skill 4
Two-bearing fix
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At 1325 you take two bearings with a hand-bearing compass: Westfield church spire bears 322°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 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 1450 you take two bearings with a hand-bearing compass: Mill stack bears 191°M and Westfield church spire 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 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 1655 you take two bearings with a hand-bearing compass: Mill stack bears 166°M and Heron Point Light bears 259°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 0910 you take two bearings with a hand-bearing compass: Mill stack bears 155°M and Westfield church spire bears 274°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 1415 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 322°M and Kittle water tank bears 205°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 0905 you take two bearings with a hand-bearing compass: Kittle water tank bears 217°M and Gannet Rock daybeacon bears 322°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 1215 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 111°M and Heron Point Light bears 231°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 0930 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 075°M and Westfield church spire bears 306°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 Green can "1": 212 °T Distance: 1.23 nm | No. 387001 (worked solution) |
| 2 | Bearing from Green can "3": 013 °T Distance: 1.37 nm | No. 387002 (worked solution) |
| 3 | Bearing from Green can "1": 124 °T Distance: 0.99 nm | No. 387003 (worked solution) |
| 4 | Bearing from Red nun "2": 306 °T Distance: 2.56 nm | No. 387004 (worked solution) |
| 5 | Bearing from Tern Island tower: 140 °T Distance: 5.60 nm | No. 387005 (worked solution) |
| 6 | Bearing from Bell buoy "HS": 182 °T Distance: 5.79 nm | No. 387006 (worked solution) |
| 7 | Bearing from Red nun "2": 028 °T Distance: 1.19 nm | No. 387007 (worked solution) |
| 8 | Bearing from Red nun "2": 147 °T Distance: 1.83 nm | No. 387008 (worked solution) |