Worksheet 832 · Skill 4
Two-bearing fix
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At 1150 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 112°M and Heron Point Light bears 185°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 Westfield church spire to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Westfield church spire: ________ °T Distance: ________ nm
At 1555 you take two bearings with a hand-bearing compass: Heron Point Light bears 189°M and Westfield church spire bears 239°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 1425 you take two bearings with a hand-bearing compass: Heron Point Light bears 244°M and Kittle water tank bears 148°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: Heron Point Light bears 211°M and Westfield church spire bears 286°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 1335 you take two bearings with a hand-bearing compass: Mill stack bears 157°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 0835 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 087°M and Mill stack bears 143°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 1635 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 337°M and Heron Point Light bears 270°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 1640 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 119°M and Heron Point Light 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 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 Westfield church spire: 072 °T Distance: 1.85 nm | No. 832001 (worked solution) |
| 2 | Bearing from Red nun "2": 324 °T Distance: 3.75 nm | No. 832002 (worked solution) |
| 3 | Bearing from Tern Island tower: 194 °T Distance: 1.22 nm | No. 832003 (worked solution) |
| 4 | Bearing from Red nun "2": 309 °T Distance: 1.43 nm | No. 832004 (worked solution) |
| 5 | Bearing from Red nun "2": 316 °T Distance: 3.46 nm | No. 832005 (worked solution) |
| 6 | Bearing from Green can "1": 237 °T Distance: 0.87 nm | No. 832006 (worked solution) |
| 7 | Bearing from Kittle water tank: 338 °T Distance: 2.11 nm | No. 832007 (worked solution) |
| 8 | Bearing from Green can "3": 091 °T Distance: 1.30 nm | No. 832008 (worked solution) |