Worksheet 617 · Skill 4
Two-bearing fix
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At 1600 you take two bearings with a hand-bearing compass: Westfield church spire bears 300°M and Heron Point Light bears 238°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 1725 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 105°M and Mill stack bears 167°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 1745 you take two bearings with a hand-bearing compass: Heron Point Light bears 260°M and Mill stack bears 183°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 0815 you take two bearings with a hand-bearing compass: Westfield church spire bears 265°M and Mill stack bears 178°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 1120 you take two bearings with a hand-bearing compass: Kittle water tank bears 148°M and Westfield church spire bears 262°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 1210 you take two bearings with a hand-bearing compass: Heron Point Light bears 210°M and Gannet Rock daybeacon bears 102°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 1730 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 125°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 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 1540 you take two bearings with a hand-bearing compass: Heron Point Light bears 256°M and Kittle water tank bears 162°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "3": 233 °T Distance: 2.00 nm | No. 617001 (worked solution) |
| 2 | Bearing from Red nun "2": 331 °T Distance: 0.84 nm | No. 617002 (worked solution) |
| 3 | Bearing from Red nun "2": 134 °T Distance: 1.39 nm | No. 617003 (worked solution) |
| 4 | Bearing from Green can "3": 324 °T Distance: 1.81 nm | No. 617004 (worked solution) |
| 5 | Bearing from Tern Island tower: 285 °T Distance: 1.66 nm | No. 617005 (worked solution) |
| 6 | Bearing from Green can "1": 327 °T Distance: 1.35 nm | No. 617006 (worked solution) |
| 7 | Bearing from Green can "3": 327 °T Distance: 1.75 nm | No. 617007 (worked solution) |
| 8 | Bearing from Tern Island tower: 141 °T Distance: 2.38 nm | No. 617008 (worked solution) |