Worksheet 415 · Skill 4
Two-bearing fix
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At 1020 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 092°M and Mill stack bears 173°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 1435 you take two bearings with a hand-bearing compass: Heron Point Light bears 202°M and Gannet Rock daybeacon bears 095°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 0750 you take two bearings with a hand-bearing compass: Mill stack bears 194°M and Gannet Rock daybeacon bears 120°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: Westfield church spire bears 289°M and Heron Point Light bears 187°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 1020 you take two bearings with a hand-bearing compass: Mill stack bears 188°M and Westfield church spire bears 259°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 1400 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 073°M and Mill stack bears 197°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 0715 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 088°M and Mill stack bears 188°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 1525 you take two bearings with a hand-bearing compass: Westfield church spire bears 266°M and Mill stack bears 177°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "1": 078 °T Distance: 1.00 nm | No. 415001 (worked solution) |
| 2 | Bearing from Green can "1": 285 °T Distance: 1.38 nm | No. 415002 (worked solution) |
| 3 | Bearing from Tern Island tower: 224 °T Distance: 1.71 nm | No. 415003 (worked solution) |
| 4 | Bearing from Green can "1": 312 °T Distance: 2.41 nm | No. 415004 (worked solution) |
| 5 | Bearing from Tern Island tower: 293 °T Distance: 1.83 nm | No. 415005 (worked solution) |
| 6 | Bearing from Red nun "2": 132 °T Distance: 2.14 nm | No. 415006 (worked solution) |
| 7 | Bearing from Red nun "2": 114 °T Distance: 1.37 nm | No. 415007 (worked solution) |
| 8 | Bearing from Green can "3": 320 °T Distance: 1.79 nm | No. 415008 (worked solution) |