Worksheet 97 · Skill 4
Two-bearing fix
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At 1735 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 124°M and Mill stack bears 210°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 0910 you take two bearings with a hand-bearing compass: Heron Point Light bears 219°M and Mill stack bears 169°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 0715 you take two bearings with a hand-bearing compass: Heron Point Light bears 251°M and Kittle water tank bears 161°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 0825 you take two bearings with a hand-bearing compass: Heron Point Light bears 210°M and Westfield church spire bears 294°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 1530 you take two bearings with a hand-bearing compass: Mill stack bears 177°M and Westfield church spire bears 295°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 0820 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 127°M and Mill stack bears 187°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 1525 you take two bearings with a hand-bearing compass: Mill stack bears 169°M and Westfield church spire bears 261°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 0910 you take two bearings with a hand-bearing compass: Mill stack bears 206°M and Gannet Rock daybeacon bears 133°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 Tern Island tower: 175 °T Distance: 1.66 nm | No. 97001 (worked solution) |
| 2 | Bearing from Red nun "2": 342 °T Distance: 1.27 nm | No. 97002 (worked solution) |
| 3 | Bearing from Gannet Rock daybeacon: 332 °T Distance: 1.36 nm | No. 97003 (worked solution) |
| 4 | Bearing from Green can "1": 326 °T Distance: 1.32 nm | No. 97004 (worked solution) |
| 5 | Bearing from Green can "1": 071 °T Distance: 1.25 nm | No. 97005 (worked solution) |
| 6 | Bearing from Green can "3": 355 °T Distance: 1.18 nm | No. 97006 (worked solution) |
| 7 | Bearing from Red nun "2": 342 °T Distance: 2.53 nm | No. 97007 (worked solution) |
| 8 | Bearing from Tern Island tower: 183 °T Distance: 1.15 nm | No. 97008 (worked solution) |