Worksheet 775 · Skill 4
Two-bearing fix
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At 1440 you take two bearings with a hand-bearing compass: Mill stack bears 170°M and Gannet Rock daybeacon bears 119°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 1640 you take two bearings with a hand-bearing compass: Kittle water tank bears 203°M and Gannet Rock daybeacon bears 301°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 0755 you take two bearings with a hand-bearing compass: Westfield church spire bears 308°M and Gannet Rock daybeacon bears 076°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 1150 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 088°M and Heron Point Light bears 216°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 1615 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 070°M and Mill stack bears 189°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 1035 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 090°M and Mill stack bears 202°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 1710 you take two bearings with a hand-bearing compass: Mill stack bears 200°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 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 1430 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 107°M and Heron Point Light 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 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 345 °T Distance: 2.26 nm | No. 775001 (worked solution) |
| 2 | Bearing from Bell buoy "HS": 182 °T Distance: 4.70 nm | No. 775002 (worked solution) |
| 3 | Bearing from Green can "1": 128 °T Distance: 1.61 nm | No. 775003 (worked solution) |
| 4 | Bearing from Green can "1": 250 °T Distance: 1.36 nm | No. 775004 (worked solution) |
| 5 | Bearing from Red nun "2": 145 °T Distance: 2.20 nm | No. 775005 (worked solution) |
| 6 | Bearing from Green can "3": 147 °T Distance: 1.47 nm | No. 775006 (worked solution) |
| 7 | Bearing from Green can "3": 106 °T Distance: 0.94 nm | No. 775007 (worked solution) |
| 8 | Bearing from Westfield church spire: 091 °T Distance: 1.31 nm | No. 775008 (worked solution) |