Worksheet 193 · Skill 4
Two-bearing fix
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At 1125 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 061°M and Westfield church spire bears 304°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 Mill stack to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Mill stack: ________ °T Distance: ________ nm
At 1520 you take two bearings with a hand-bearing compass: Mill stack bears 175°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 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 1235 you take two bearings with a hand-bearing compass: Mill stack bears 209°M and Westfield church spire bears 296°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 1755 you take two bearings with a hand-bearing compass: Westfield church spire bears 273°M and Heron Point Light bears 214°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 1000 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 077°M and Westfield church spire bears 309°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 1105 you take two bearings with a hand-bearing compass: Mill stack bears 162°M and Westfield church spire bears 253°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 1640 you take two bearings with a hand-bearing compass: Mill stack bears 196°M and Heron Point Light bears 259°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 1310 you take two bearings with a hand-bearing compass: Westfield church spire bears 256°M and Mill stack bears 171°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 Mill stack: 029 °T Distance: 2.05 nm | No. 193001 (worked solution) |
| 2 | Bearing from Green can "1": 127 °T Distance: 1.69 nm | No. 193002 (worked solution) |
| 3 | Bearing from Green can "3": 150 °T Distance: 2.06 nm | No. 193003 (worked solution) |
| 4 | Bearing from Red nun "2": 342 °T Distance: 1.75 nm | No. 193004 (worked solution) |
| 5 | Bearing from Green can "1": 133 °T Distance: 1.45 nm | No. 193005 (worked solution) |
| 6 | Bearing from Red nun "2": 326 °T Distance: 3.07 nm | No. 193006 (worked solution) |
| 7 | Bearing from Green can "3": 166 °T Distance: 1.62 nm | No. 193007 (worked solution) |
| 8 | Bearing from Green can "3": 314 °T Distance: 2.73 nm | No. 193008 (worked solution) |