Worksheet 726 · Skill 4
Two-bearing fix
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At 1725 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 115°M and Heron Point Light bears 194°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 0730 you take two bearings with a hand-bearing compass: Heron Point Light bears 257°M and Kittle water tank bears 160°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 1735 you take two bearings with a hand-bearing compass: Mill stack bears 170°M and Heron Point Light bears 245°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 1100 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 133°M and Heron Point Light bears 221°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 1415 you take two bearings with a hand-bearing compass: Heron Point Light bears 278°M and Mill stack bears 223°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 1630 you take two bearings with a hand-bearing compass: Kittle water tank bears 142°M and Westfield church spire bears 270°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 0755 you take two bearings with a hand-bearing compass: Heron Point Light bears 191°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 0800 you take two bearings with a hand-bearing compass: Mill stack bears 167°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 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 Westfield church spire: 072 °T Distance: 2.53 nm | No. 726001 (worked solution) |
| 2 | Bearing from Tern Island tower: 145 °T Distance: 2.47 nm | No. 726002 (worked solution) |
| 3 | Bearing from Green can "1": 075 °T Distance: 0.82 nm | No. 726003 (worked solution) |
| 4 | Bearing from Green can "3": 348 °T Distance: 2.00 nm | No. 726004 (worked solution) |
| 5 | Bearing from Red nun "2": 131 °T Distance: 3.16 nm | No. 726005 (worked solution) |
| 6 | Bearing from Green can "3": 352 °T Distance: 1.18 nm | No. 726006 (worked solution) |
| 7 | Bearing from Westfield church spire: 054 °T Distance: 2.79 nm | No. 726007 (worked solution) |
| 8 | Bearing from Green can "1": 021 °T Distance: 0.96 nm | No. 726008 (worked solution) |