Worksheet 696 · Skill 4
Two-bearing fix
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At 1425 you take two bearings with a hand-bearing compass: Mill stack bears 216°M and Kittle water tank bears 158°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 Gannet Rock daybeacon to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Gannet Rock daybeacon: ________ °T Distance: ________ nm
At 1330 you take two bearings with a hand-bearing compass: Heron Point Light bears 231°M and Gannet Rock daybeacon bears 129°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 1410 you take two bearings with a hand-bearing compass: Heron Point Light bears 266°M and Mill stack bears 210°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 1445 you take two bearings with a hand-bearing compass: Heron Point Light bears 203°M and Gannet Rock daybeacon bears 118°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 1040 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 294°M and Kittle water tank bears 202°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 0925 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 119°M and Heron Point Light bears 199°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 1505 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 098°M and Mill stack bears 208°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: Mill stack bears 172°M and Westfield church spire bears 271°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 Gannet Rock daybeacon: 322 °T Distance: 1.47 nm | No. 696001 (worked solution) |
| 2 | Bearing from Green can "3": 011 °T Distance: 1.17 nm | No. 696002 (worked solution) |
| 3 | Bearing from Green can "3": 153 °T Distance: 2.23 nm | No. 696003 (worked solution) |
| 4 | Bearing from Red nun "2": 333 °T Distance: 2.57 nm | No. 696004 (worked solution) |
| 5 | Bearing from Bell buoy "HS": 182 °T Distance: 4.43 nm | No. 696005 (worked solution) |
| 6 | Bearing from Red nun "2": 330 °T Distance: 2.90 nm | No. 696006 (worked solution) |
| 7 | Bearing from Green can "3": 123 °T Distance: 1.59 nm | No. 696007 (worked solution) |
| 8 | Bearing from Green can "3": 300 °T Distance: 1.83 nm | No. 696008 (worked solution) |