Worksheet 769 · Skill 4
Two-bearing fix
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At 1015 you take two bearings with a hand-bearing compass: Westfield church spire bears 306°M and Gannet Rock daybeacon bears 073°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 1020 you take two bearings with a hand-bearing compass: Mill stack bears 223°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 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 1010 you take two bearings with a hand-bearing compass: Heron Point Light bears 228°M and Kittle water tank bears 147°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 1430 you take two bearings with a hand-bearing compass: Westfield church spire bears 263°M and Gannet Rock daybeacon bears 134°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 0825 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 099°M and Mill stack bears 156°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 1315 you take two bearings with a hand-bearing compass: Mill stack bears 168°M and Gannet Rock daybeacon bears 099°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 1405 you take two bearings with a hand-bearing compass: Westfield church spire bears 251°M and Mill stack bears 183°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 0705 you take two bearings with a hand-bearing compass: Mill stack bears 216°M and Westfield church spire bears 291°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 145 °T Distance: 1.99 nm | No. 769001 (worked solution) |
| 2 | Bearing from Tern Island tower: 148 °T Distance: 2.36 nm | No. 769002 (worked solution) |
| 3 | Bearing from Tern Island tower: 272 °T Distance: 1.45 nm | No. 769003 (worked solution) |
| 4 | Bearing from Green can "3": 355 °T Distance: 1.86 nm | No. 769004 (worked solution) |
| 5 | Bearing from Green can "1": 326 °T Distance: 0.98 nm | No. 769005 (worked solution) |
| 6 | Bearing from Green can "1": 031 °T Distance: 0.90 nm | No. 769006 (worked solution) |
| 7 | Bearing from Tern Island tower: 300 °T Distance: 2.68 nm | No. 769007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 257 °T Distance: 1.83 nm | No. 769008 (worked solution) |