Worksheet 150 · Skill 4
Two-bearing fix
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At 0750 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 029°M and Heron Point Light bears 276°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 Kittle water tank to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Kittle water tank: ________ °T Distance: ________ nm
At 1050 you take two bearings with a hand-bearing compass: Kittle water tank bears 148°M and Mill stack bears 204°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
At 1045 you take two bearings with a hand-bearing compass: Mill stack bears 166°M and Westfield church spire bears 247°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 1355 you take two bearings with a hand-bearing compass: Mill stack bears 191°M and Westfield church spire bears 308°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 0855 you take two bearings with a hand-bearing compass: Mill stack bears 193°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 0805 you take two bearings with a hand-bearing compass: Westfield church spire bears 257°M and Heron Point Light bears 207°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 1435 you take two bearings with a hand-bearing compass: Westfield church spire bears 311°M and Heron Point Light bears 250°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 1240 you take two bearings with a hand-bearing compass: Westfield church spire bears 242°M and Mill stack bears 170°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 Kittle water tank: 297 °T Distance: 2.43 nm | No. 150001 (worked solution) |
| 2 | Bearing from Tern Island tower: 193 °T Distance: 1.24 nm | No. 150002 (worked solution) |
| 3 | Bearing from Red nun "2": 336 °T Distance: 3.38 nm | No. 150003 (worked solution) |
| 4 | Bearing from Green can "1": 126 °T Distance: 2.36 nm | No. 150004 (worked solution) |
| 5 | Bearing from Green can "3": 026 °T Distance: 1.10 nm | No. 150005 (worked solution) |
| 6 | Bearing from Green can "3": 312 °T Distance: 2.69 nm | No. 150006 (worked solution) |
| 7 | Bearing from Red nun "2": 209 °T Distance: 1.25 nm | No. 150007 (worked solution) |
| 8 | Bearing from Green can "3": 320 °T Distance: 3.64 nm | No. 150008 (worked solution) |