Worksheet 158 · Skill 4
Two-bearing fix
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At 1515 you take two bearings with a hand-bearing compass: Heron Point Light bears 190°M and Gannet Rock daybeacon bears 096°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 1125 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 124°M and Heron Point Light bears 195°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 0730 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 134°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 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 1620 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 122°M and Heron Point Light bears 238°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 1545 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 108°M and Heron Point Light bears 202°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 0805 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 001°M and Heron Point Light bears 276°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 1105 you take two bearings with a hand-bearing compass: Heron Point Light bears 196°M and Westfield church spire bears 269°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 1800 you take two bearings with a hand-bearing compass: Westfield church spire bears 291°M and Mill stack bears 207°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 Green can "1": 286 °T Distance: 1.77 nm | No. 158001 (worked solution) |
| 2 | Bearing from Westfield church spire: 054 °T Distance: 3.25 nm | No. 158002 (worked solution) |
| 3 | Bearing from Green can "3": 332 °T Distance: 3.24 nm | No. 158003 (worked solution) |
| 4 | Bearing from Tern Island tower: 228 °T Distance: 1.63 nm | No. 158004 (worked solution) |
| 5 | Bearing from Red nun "2": 309 °T Distance: 1.97 nm | No. 158005 (worked solution) |
| 6 | Bearing from Kittle water tank: 313 °T Distance: 1.65 nm | No. 158006 (worked solution) |
| 7 | Bearing from Red nun "2": 314 °T Distance: 2.52 nm | No. 158007 (worked solution) |
| 8 | Bearing from Green can "3": 136 °T Distance: 1.64 nm | No. 158008 (worked solution) |