Worksheet 901 · Skill 4
Two-bearing fix
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At 1735 you take two bearings with a hand-bearing compass: Heron Point Light bears 223°M and Gannet Rock daybeacon bears 097°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 0905 you take two bearings with a hand-bearing compass: Westfield church spire bears 259°M and Mill stack 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 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 1710 you take two bearings with a hand-bearing compass: Heron Point Light bears 229°M and Westfield church spire bears 284°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 1305 you take two bearings with a hand-bearing compass: Westfield church spire bears 312°M and Heron Point Light bears 237°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 0920 you take two bearings with a hand-bearing compass: Heron Point Light bears 175°M and Gannet Rock daybeacon bears 099°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 1415 you take two bearings with a hand-bearing compass: Heron Point Light bears 231°M and Westfield church spire bears 284°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 1505 you take two bearings with a hand-bearing compass: Mill stack bears 207°M and Gannet Rock daybeacon bears 131°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 1355 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 303°M and Kittle water tank 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 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 270 °T Distance: 0.95 nm | No. 901001 (worked solution) |
| 2 | Bearing from Tern Island tower: 317 °T Distance: 1.34 nm | No. 901002 (worked solution) |
| 3 | Bearing from Red nun "2": 011 °T Distance: 0.87 nm | No. 901003 (worked solution) |
| 4 | Bearing from Red nun "2": 230 °T Distance: 1.37 nm | No. 901004 (worked solution) |
| 5 | Bearing from Westfield church spire: 129 °T Distance: 1.81 nm | No. 901005 (worked solution) |
| 6 | Bearing from Red nun "2": 022 °T Distance: 0.90 nm | No. 901006 (worked solution) |
| 7 | Bearing from Tern Island tower: 180 °T Distance: 1.28 nm | No. 901007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 173 °T Distance: 5.25 nm | No. 901008 (worked solution) |