Worksheet 55 · Skill 4
Two-bearing fix
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At 1035 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 068°M and Westfield church spire bears 310°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 0820 you take two bearings with a hand-bearing compass: Heron Point Light bears 214°M and Gannet Rock daybeacon bears 130°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 1315 you take two bearings with a hand-bearing compass: Heron Point Light bears 173°M and Westfield church spire bears 243°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 1005 you take two bearings with a hand-bearing compass: Westfield church spire bears 288°M and Mill stack bears 173°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 0710 you take two bearings with a hand-bearing compass: Mill stack bears 223°M and Kittle water tank bears 165°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 0810 you take two bearings with a hand-bearing compass: Westfield church spire bears 264°M and Heron Point Light bears 175°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 1655 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 119°M and Westfield church spire bears 243°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 1105 you take two bearings with a hand-bearing compass: Heron Point Light bears 247°M and Kittle water tank bears 167°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Mill stack: 355 °T Distance: 1.63 nm | No. 55001 (worked solution) |
| 2 | Bearing from Green can "3": 332 °T Distance: 2.41 nm | No. 55002 (worked solution) |
| 3 | Bearing from Green can "1": 313 °T Distance: 3.83 nm | No. 55003 (worked solution) |
| 4 | Bearing from Green can "3": 253 °T Distance: 1.21 nm | No. 55004 (worked solution) |
| 5 | Bearing from Gannet Rock daybeacon: 348 °T Distance: 0.99 nm | No. 55005 (worked solution) |
| 6 | Bearing from Green can "1": 311 °T Distance: 3.43 nm | No. 55006 (worked solution) |
| 7 | Bearing from Red nun "2": 322 °T Distance: 3.57 nm | No. 55007 (worked solution) |
| 8 | Bearing from Tern Island tower: 112 °T Distance: 1.52 nm | No. 55008 (worked solution) |