Worksheet 681 · Skill 4
Two-bearing fix
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At 1120 you take two bearings with a hand-bearing compass: Heron Point Light bears 228°M and Westfield church spire bears 279°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 1615 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 134°M and Heron Point Light bears 200°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 1120 you take two bearings with a hand-bearing compass: Westfield church spire bears 295°M and Mill stack bears 205°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 1625 you take two bearings with a hand-bearing compass: Heron Point Light bears 231°M and Gannet Rock daybeacon bears 110°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 1335 you take two bearings with a hand-bearing compass: Westfield church spire bears 262°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 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 1735 you take two bearings with a hand-bearing compass: Westfield church spire bears 313°M and Gannet Rock daybeacon bears 073°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 1350 you take two bearings with a hand-bearing compass: Heron Point Light bears 229°M and Mill stack bears 178°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 1440 you take two bearings with a hand-bearing compass: Heron Point Light bears 270°M and Mill stack bears 176°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "3": 291 °T Distance: 0.95 nm | No. 681001 (worked solution) |
| 2 | Bearing from Green can "3": 327 °T Distance: 4.09 nm | No. 681002 (worked solution) |
| 3 | Bearing from Green can "3": 151 °T Distance: 1.83 nm | No. 681003 (worked solution) |
| 4 | Bearing from Green can "3": 277 °T Distance: 0.81 nm | No. 681004 (worked solution) |
| 5 | Bearing from Tern Island tower: 284 °T Distance: 1.73 nm | No. 681005 (worked solution) |
| 6 | Bearing from Green can "1": 145 °T Distance: 1.68 nm | No. 681006 (worked solution) |
| 7 | Bearing from Green can "3": 286 °T Distance: 0.90 nm | No. 681007 (worked solution) |
| 8 | Bearing from Green can "1": 126 °T Distance: 1.72 nm | No. 681008 (worked solution) |