Worksheet 179 · Skill 4
Two-bearing fix
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At 1425 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 124°M and Heron Point Light bears 221°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 0830 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 101°M and Heron Point Light 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 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 0840 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 125°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 1500 you take two bearings with a hand-bearing compass: Mill stack bears 188°M and Heron Point Light 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 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 1645 you take two bearings with a hand-bearing compass: Heron Point Light bears 255°M and Westfield church spire bears 317°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 1120 you take two bearings with a hand-bearing compass: Mill stack bears 185°M and Heron Point Light bears 242°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 1050 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 118°M and Mill stack bears 182°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 1550 you take two bearings with a hand-bearing compass: Heron Point Light bears 234°M and Westfield church spire bears 296°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 "3": 327 °T Distance: 1.57 nm | No. 179001 (worked solution) |
| 2 | Bearing from Green can "1": 308 °T Distance: 1.74 nm | No. 179002 (worked solution) |
| 3 | Bearing from Green can "3": 312 °T Distance: 3.39 nm | No. 179003 (worked solution) |
| 4 | Bearing from Green can "3": 182 °T Distance: 1.12 nm | No. 179004 (worked solution) |
| 5 | Bearing from Green can "1": 203 °T Distance: 0.88 nm | No. 179005 (worked solution) |
| 6 | Bearing from Red nun "2": 068 °T Distance: 1.14 nm | No. 179006 (worked solution) |
| 7 | Bearing from Green can "3": 320 °T Distance: 0.86 nm | No. 179007 (worked solution) |
| 8 | Bearing from Green can "3": 240 °T Distance: 1.79 nm | No. 179008 (worked solution) |