Worksheet 605 · Skill 4
Two-bearing fix
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At 1630 you take two bearings with a hand-bearing compass: Westfield church spire bears 307°M and Mill stack 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 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 1600 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 128°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 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 1110 you take two bearings with a hand-bearing compass: Westfield church spire bears 262°M and Mill stack bears 148°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 1245 you take two bearings with a hand-bearing compass: Mill stack bears 150°M and Gannet Rock daybeacon bears 079°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 1000 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 070°M and Westfield church spire bears 314°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 Mill stack to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Mill stack: ________ °T Distance: ________ nm
At 1055 you take two bearings with a hand-bearing compass: Kittle water tank bears 169°M and Mill stack bears 223°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 0845 you take two bearings with a hand-bearing compass: Mill stack bears 208°M and Gannet Rock daybeacon bears 100°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 1735 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 129°M and Heron Point Light bears 215°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 "1": 123 °T Distance: 2.07 nm | No. 605001 (worked solution) |
| 2 | Bearing from Green can "3": 000 °T Distance: 1.20 nm | No. 605002 (worked solution) |
| 3 | Bearing from Green can "1": 312 °T Distance: 3.45 nm | No. 605003 (worked solution) |
| 4 | Bearing from Green can "1": 166 °T Distance: 1.10 nm | No. 605004 (worked solution) |
| 5 | Bearing from Mill stack: 334 °T Distance: 1.66 nm | No. 605005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 001 °T Distance: 1.27 nm | No. 605006 (worked solution) |
| 7 | Bearing from Green can "3": 120 °T Distance: 1.57 nm | No. 605007 (worked solution) |
| 8 | Bearing from Green can "3": 331 °T Distance: 2.27 nm | No. 605008 (worked solution) |