Worksheet 713 · Skill 4
Two-bearing fix
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At 1230 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 113°M and Mill stack bears 193°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 1450 you take two bearings with a hand-bearing compass: Westfield church spire bears 305°M and Mill stack bears 186°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 0725 you take two bearings with a hand-bearing compass: Kittle water tank bears 164°M and Mill stack bears 217°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: Gannet Rock daybeacon bears 356°M and Heron Point Light bears 275°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 1615 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 134°M and Westfield church spire bears 257°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 0845 you take two bearings with a hand-bearing compass: Westfield church spire bears 293°M and Mill stack bears 166°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 1440 you take two bearings with a hand-bearing compass: Mill stack bears 164°M and Gannet Rock daybeacon bears 113°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 1750 you take two bearings with a hand-bearing compass: Mill stack bears 169°M and Westfield church spire bears 299°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 Red nun "2": 062 °T Distance: 1.91 nm | No. 713001 (worked solution) |
| 2 | Bearing from Red nun "2": 142 °T Distance: 1.90 nm | No. 713002 (worked solution) |
| 3 | Bearing from Tern Island tower: 126 °T Distance: 1.55 nm | No. 713003 (worked solution) |
| 4 | Bearing from Kittle water tank: 320 °T Distance: 1.65 nm | No. 713004 (worked solution) |
| 5 | Bearing from Green can "3": 343 °T Distance: 2.39 nm | No. 713005 (worked solution) |
| 6 | Bearing from Green can "1": 018 °T Distance: 0.90 nm | No. 713006 (worked solution) |
| 7 | Bearing from Red nun "2": 327 °T Distance: 2.01 nm | No. 713007 (worked solution) |
| 8 | Bearing from Green can "3": 222 °T Distance: 1.74 nm | No. 713008 (worked solution) |