Worksheet 731 · Skill 4
Two-bearing fix
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At 0935 you take two bearings with a hand-bearing compass: Westfield church spire bears 309°M and Heron Point Light bears 248°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: Heron Point Light bears 196°M and Westfield church spire bears 283°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 1220 you take two bearings with a hand-bearing compass: Mill stack bears 218°M and Westfield church spire bears 285°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 1150 you take two bearings with a hand-bearing compass: Kittle water tank bears 150°M and Heron Point Light bears 248°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 1350 you take two bearings with a hand-bearing compass: Westfield church spire bears 222°M and Mill stack bears 150°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 1040 you take two bearings with a hand-bearing compass: Westfield church spire bears 270°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 1030 you take two bearings with a hand-bearing compass: Mill stack bears 189°M and Gannet Rock daybeacon bears 087°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 1115 you take two bearings with a hand-bearing compass: Heron Point Light bears 225°M and Mill stack bears 154°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 209 °T Distance: 1.09 nm | No. 731001 (worked solution) |
| 2 | Bearing from Green can "1": 323 °T Distance: 2.18 nm | No. 731002 (worked solution) |
| 3 | Bearing from Gannet Rock daybeacon: 284 °T Distance: 1.24 nm | No. 731003 (worked solution) |
| 4 | Bearing from Tern Island tower: 175 °T Distance: 1.44 nm | No. 731004 (worked solution) |
| 5 | Bearing from Green can "1": 317 °T Distance: 4.28 nm | No. 731005 (worked solution) |
| 6 | Bearing from Green can "3": 308 °T Distance: 1.65 nm | No. 731006 (worked solution) |
| 7 | Bearing from Red nun "2": 115 °T Distance: 1.45 nm | No. 731007 (worked solution) |
| 8 | Bearing from Red nun "2": 256 °T Distance: 1.07 nm | No. 731008 (worked solution) |