Worksheet 473 · Skill 4
Two-bearing fix
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At 0835 you take two bearings with a hand-bearing compass: Westfield church spire bears 304°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 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 0830 you take two bearings with a hand-bearing compass: Mill stack bears 167°M and Gannet Rock daybeacon bears 090°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 0755 you take two bearings with a hand-bearing compass: Westfield church spire bears 254°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 "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 1700 you take two bearings with a hand-bearing compass: Mill stack bears 189°M and Westfield church spire bears 283°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 0730 you take two bearings with a hand-bearing compass: Kittle water tank bears 150°M and Heron Point Light bears 253°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 0850 you take two bearings with a hand-bearing compass: Westfield church spire bears 297°M and Mill stack bears 224°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 1715 you take two bearings with a hand-bearing compass: Mill stack bears 163°M and Gannet Rock daybeacon bears 108°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 1740 you take two bearings with a hand-bearing compass: Heron Point Light bears 200°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 "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 Red nun "2": 261 °T Distance: 1.19 nm | No. 473001 (worked solution) |
| 2 | Bearing from Green can "3": 220 °T Distance: 1.93 nm | No. 473002 (worked solution) |
| 3 | Bearing from Green can "3": 328 °T Distance: 2.68 nm | No. 473003 (worked solution) |
| 4 | Bearing from Red nun "2": 059 °T Distance: 1.58 nm | No. 473004 (worked solution) |
| 5 | Bearing from Gannet Rock daybeacon: 295 °T Distance: 1.46 nm | No. 473005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 234 °T Distance: 2.18 nm | No. 473006 (worked solution) |
| 7 | Bearing from Red nun "2": 320 °T Distance: 1.46 nm | No. 473007 (worked solution) |
| 8 | Bearing from Green can "1": 313 °T Distance: 1.67 nm | No. 473008 (worked solution) |