Worksheet 691 · Skill 4
Two-bearing fix
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At 1720 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 304°M and Kittle water tank bears 202°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 1615 you take two bearings with a hand-bearing compass: Heron Point Light bears 236°M and Gannet Rock daybeacon bears 122°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 1205 you take two bearings with a hand-bearing compass: Mill stack bears 160°M and Westfield church spire bears 278°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 1320 you take two bearings with a hand-bearing compass: Mill stack bears 170°M and Heron Point Light bears 240°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 1510 you take two bearings with a hand-bearing compass: Mill stack bears 213°M and Gannet Rock daybeacon bears 140°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 1515 you take two bearings with a hand-bearing compass: Heron Point Light bears 227°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 1140 you take two bearings with a hand-bearing compass: Mill stack bears 211°M and Gannet Rock daybeacon bears 123°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 1055 you take two bearings with a hand-bearing compass: Kittle water tank bears 221°M and Gannet Rock daybeacon bears 288°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 Bell buoy "HS": 183 °T Distance: 4.80 nm | No. 691001 (worked solution) |
| 2 | Bearing from Tern Island tower: 234 °T Distance: 1.72 nm | No. 691002 (worked solution) |
| 3 | Bearing from Red nun "2": 315 °T Distance: 1.92 nm | No. 691003 (worked solution) |
| 4 | Bearing from Green can "1": 055 °T Distance: 0.86 nm | No. 691004 (worked solution) |
| 5 | Bearing from Tern Island tower: 157 °T Distance: 1.46 nm | No. 691005 (worked solution) |
| 6 | Bearing from Green can "3": 347 °T Distance: 1.22 nm | No. 691006 (worked solution) |
| 7 | Bearing from Tern Island tower: 173 °T Distance: 1.73 nm | No. 691007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 169 °T Distance: 4.47 nm | No. 691008 (worked solution) |