Worksheet 908 · Skill 4
Two-bearing fix
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At 1235 you take two bearings with a hand-bearing compass: Heron Point Light bears 276°M and Kittle water tank bears 156°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 1610 you take two bearings with a hand-bearing compass: Mill stack bears 178°M and Gannet Rock daybeacon bears 117°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 1205 you take two bearings with a hand-bearing compass: Heron Point Light bears 277°M and Mill stack bears 190°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 1455 you take two bearings with a hand-bearing compass: Mill stack bears 212°M and Gannet Rock daybeacon bears 120°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 1145 you take two bearings with a hand-bearing compass: Kittle water tank bears 143°M and Mill stack bears 220°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 0915 you take two bearings with a hand-bearing compass: Westfield church spire bears 324°M and Gannet Rock daybeacon bears 076°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
At 0740 you take two bearings with a hand-bearing compass: Mill stack bears 188°M and Westfield church spire bears 258°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 1315 you take two bearings with a hand-bearing compass: Mill stack bears 213°M and Kittle water tank 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 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Gannet Rock daybeacon: 159 °T Distance: 1.99 nm | No. 908001 (worked solution) |
| 2 | Bearing from Green can "3": 307 °T Distance: 1.18 nm | No. 908002 (worked solution) |
| 3 | Bearing from Green can "1": 127 °T Distance: 2.35 nm | No. 908003 (worked solution) |
| 4 | Bearing from Tern Island tower: 173 °T Distance: 1.85 nm | No. 908004 (worked solution) |
| 5 | Bearing from Gannet Rock daybeacon: 262 °T Distance: 1.33 nm | No. 908005 (worked solution) |
| 6 | Bearing from Heron Point Light: 098 °T Distance: 1.47 nm | No. 908006 (worked solution) |
| 7 | Bearing from Tern Island tower: 296 °T Distance: 1.87 nm | No. 908007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 298 °T Distance: 1.61 nm | No. 908008 (worked solution) |