Worksheet 81 · Skill 4
Two-bearing fix
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At 1720 you take two bearings with a hand-bearing compass: Heron Point Light bears 232°M and Gannet Rock daybeacon bears 122°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 1440 you take two bearings with a hand-bearing compass: Kittle water tank bears 201°M and Gannet Rock daybeacon bears 279°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 Bell buoy "HS" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Bell buoy "HS": ________ °T Distance: ________ nm
At 0840 you take two bearings with a hand-bearing compass: Westfield church spire bears 282°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 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 1135 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 083°M and Mill stack bears 206°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 1035 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 114°M and Mill stack 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 "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 1655 you take two bearings with a hand-bearing compass: Mill stack bears 161°M and Gannet Rock daybeacon bears 079°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 1545 you take two bearings with a hand-bearing compass: Kittle water tank bears 146°M and Westfield church spire bears 263°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 1715 you take two bearings with a hand-bearing compass: Westfield church spire bears 322°M and Gannet Rock daybeacon bears 091°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 Heron Point Light to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Heron Point Light: ________ °T Distance: ________ nm
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Tern Island tower: 244 °T Distance: 1.94 nm | No. 81001 (worked solution) |
| 2 | Bearing from Bell buoy "HS": 181 °T Distance: 3.88 nm | No. 81002 (worked solution) |
| 3 | Bearing from Red nun "2": 347 °T Distance: 1.08 nm | No. 81003 (worked solution) |
| 4 | Bearing from Green can "3": 148 °T Distance: 1.81 nm | No. 81004 (worked solution) |
| 5 | Bearing from Green can "3": 294 °T Distance: 1.31 nm | No. 81005 (worked solution) |
| 6 | Bearing from Green can "1": 141 °T Distance: 1.17 nm | No. 81006 (worked solution) |
| 7 | Bearing from Tern Island tower: 278 °T Distance: 1.83 nm | No. 81007 (worked solution) |
| 8 | Bearing from Heron Point Light: 010 °T Distance: 1.29 nm | No. 81008 (worked solution) |