Worksheet 166 · Skill 4
Two-bearing fix
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At 1115 you take two bearings with a hand-bearing compass: Mill stack bears 155°M and Heron Point Light bears 230°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 1740 you take two bearings with a hand-bearing compass: Westfield church spire bears 253°M and Gannet Rock daybeacon bears 126°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 1420 you take two bearings with a hand-bearing compass: Mill stack bears 220°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 1105 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 134°M and Mill stack bears 211°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 1315 you take two bearings with a hand-bearing compass: Heron Point Light bears 188°M and Gannet Rock daybeacon bears 121°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 1525 you take two bearings with a hand-bearing compass: Kittle water tank bears 156°M and Heron Point Light bears 268°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 1000 you take two bearings with a hand-bearing compass: Heron Point Light bears 237°M and Mill stack bears 179°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 1750 you take two bearings with a hand-bearing compass: Heron Point Light bears 213°M and Mill stack 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 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 247 °T Distance: 0.96 nm | No. 166001 (worked solution) |
| 2 | Bearing from Green can "3": 317 °T Distance: 2.89 nm | No. 166002 (worked solution) |
| 3 | Bearing from Gannet Rock daybeacon: 345 °T Distance: 1.36 nm | No. 166003 (worked solution) |
| 4 | Bearing from Tern Island tower: 166 °T Distance: 1.44 nm | No. 166004 (worked solution) |
| 5 | Bearing from Westfield church spire: 048 °T Distance: 2.66 nm | No. 166005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 173 °T Distance: 0.85 nm | No. 166006 (worked solution) |
| 7 | Bearing from Red nun "2": 049 °T Distance: 0.80 nm | No. 166007 (worked solution) |
| 8 | Bearing from Green can "1": 317 °T Distance: 1.08 nm | No. 166008 (worked solution) |