Worksheet 370 · Skill 4
Two-bearing fix
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At 1205 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 250°M and Kittle water tank bears 185°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 1045 you take two bearings with a hand-bearing compass: Westfield church spire bears 260°M and Kittle water tank bears 147°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 0930 you take two bearings with a hand-bearing compass: Mill stack bears 179°M and Heron Point Light bears 229°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 1725 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 102°M and Heron Point Light bears 186°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 0910 you take two bearings with a hand-bearing compass: Heron Point Light bears 246°M and Mill stack bears 191°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 1600 you take two bearings with a hand-bearing compass: Westfield church spire bears 274°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 "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 1000 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 164°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 1005 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 005°M and Heron Point Light bears 277°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Bell buoy "HS": 196 °T Distance: 3.29 nm | No. 370001 (worked solution) |
| 2 | Bearing from Tern Island tower: 286 °T Distance: 1.96 nm | No. 370002 (worked solution) |
| 3 | Bearing from Green can "3": 293 °T Distance: 0.86 nm | No. 370003 (worked solution) |
| 4 | Bearing from Westfield church spire: 112 °T Distance: 2.01 nm | No. 370004 (worked solution) |
| 5 | Bearing from Red nun "2": 077 °T Distance: 1.52 nm | No. 370005 (worked solution) |
| 6 | Bearing from Green can "3": 297 °T Distance: 1.60 nm | No. 370006 (worked solution) |
| 7 | Bearing from Red nun "2": 324 °T Distance: 1.51 nm | No. 370007 (worked solution) |
| 8 | Bearing from Kittle water tank: 307 °T Distance: 1.66 nm | No. 370008 (worked solution) |