Worksheet 829 · Skill 4
Two-bearing fix
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At 0735 you take two bearings with a hand-bearing compass: Heron Point Light bears 249°M and Mill stack bears 195°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 0935 you take two bearings with a hand-bearing compass: Heron Point Light bears 222°M and Mill stack bears 167°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 1205 you take two bearings with a hand-bearing compass: Kittle water tank bears 143°M and Heron Point Light bears 247°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 1325 you take two bearings with a hand-bearing compass: Mill stack bears 213°M and Heron Point Light bears 265°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 1325 you take two bearings with a hand-bearing compass: Heron Point Light bears 257°M and Kittle water tank bears 163°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 1435 you take two bearings with a hand-bearing compass: Mill stack bears 183°M and Westfield church spire bears 268°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 1245 you take two bearings with a hand-bearing compass: Heron Point Light bears 192°M and Westfield church spire bears 251°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 1720 you take two bearings with a hand-bearing compass: Mill stack bears 192°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 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 Green can "3": 147 °T Distance: 0.83 nm | No. 829001 (worked solution) |
| 2 | Bearing from Red nun "2": 331 °T Distance: 0.91 nm | No. 829002 (worked solution) |
| 3 | Bearing from Green can "3": 093 °T Distance: 1.20 nm | No. 829003 (worked solution) |
| 4 | Bearing from Green can "3": 146 °T Distance: 2.23 nm | No. 829004 (worked solution) |
| 5 | Bearing from Tern Island tower: 140 °T Distance: 2.53 nm | No. 829005 (worked solution) |
| 6 | Bearing from Green can "3": 339 °T Distance: 1.40 nm | No. 829006 (worked solution) |
| 7 | Bearing from Red nun "2": 321 °T Distance: 3.22 nm | No. 829007 (worked solution) |
| 8 | Bearing from Tern Island tower: 229 °T Distance: 1.82 nm | No. 829008 (worked solution) |