Worksheet 109 · Skill 4
Two-bearing fix
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At 1205 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 012°M and Heron Point Light bears 274°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 Kittle water tank to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Kittle water tank: ________ °T Distance: ________ nm
At 1400 you take two bearings with a hand-bearing compass: Heron Point Light bears 204°M and Gannet Rock daybeacon bears 134°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 1435 you take two bearings with a hand-bearing compass: Heron Point Light bears 275°M and Mill stack bears 215°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 0730 you take two bearings with a hand-bearing compass: Kittle water tank bears 165°M and Heron Point Light bears 257°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 0925 you take two bearings with a hand-bearing compass: Heron Point Light bears 246°M and Mill stack bears 146°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 1030 you take two bearings with a hand-bearing compass: Heron Point Light bears 178°M and Gannet Rock daybeacon bears 106°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 1615 you take two bearings with a hand-bearing compass: Kittle water tank bears 226°M and Gannet Rock daybeacon bears 297°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 1435 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 207°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 Kittle water tank: 312 °T Distance: 2.06 nm | No. 109001 (worked solution) |
| 2 | Bearing from Green can "3": 329 °T Distance: 3.64 nm | No. 109002 (worked solution) |
| 3 | Bearing from Red nun "2": 130 °T Distance: 2.86 nm | No. 109003 (worked solution) |
| 4 | Bearing from Tern Island tower: 137 °T Distance: 2.58 nm | No. 109004 (worked solution) |
| 5 | Bearing from Red nun "2": 221 °T Distance: 1.54 nm | No. 109005 (worked solution) |
| 6 | Bearing from Westfield church spire: 097 °T Distance: 1.40 nm | No. 109006 (worked solution) |
| 7 | Bearing from Bell buoy "HS": 171 °T Distance: 4.93 nm | No. 109007 (worked solution) |
| 8 | Bearing from Tern Island tower: 183 °T Distance: 1.48 nm | No. 109008 (worked solution) |