Worksheet 84 · Skill 4
Two-bearing fix
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At 1545 you take two bearings with a hand-bearing compass: Westfield church spire bears 305°M and Mill stack bears 215°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: Gannet Rock daybeacon bears 096°M and Heron Point Light bears 189°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 1750 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 177°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 1450 you take two bearings with a hand-bearing compass: Mill stack bears 226°M and Westfield church spire bears 298°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 0930 you take two bearings with a hand-bearing compass: Westfield church spire bears 295°M and Mill stack bears 177°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 1010 you take two bearings with a hand-bearing compass: Kittle water tank bears 146°M and Heron Point Light bears 266°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 1350 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 112°M and Heron Point Light bears 231°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 1735 you take two bearings with a hand-bearing compass: Kittle water tank bears 217°M and Gannet Rock daybeacon 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 Bell buoy "HS" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Bell buoy "HS": ________ °T Distance: ________ nm
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 134 °T Distance: 2.90 nm | No. 84001 (worked solution) |
| 2 | Bearing from Green can "1": 285 °T Distance: 1.80 nm | No. 84002 (worked solution) |
| 3 | Bearing from Green can "3": 285 °T Distance: 0.99 nm | No. 84003 (worked solution) |
| 4 | Bearing from Gannet Rock daybeacon: 231 °T Distance: 2.26 nm | No. 84004 (worked solution) |
| 5 | Bearing from Green can "1": 071 °T Distance: 1.25 nm | No. 84005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 219 °T Distance: 0.92 nm | No. 84006 (worked solution) |
| 7 | Bearing from Red nun "2": 029 °T Distance: 1.28 nm | No. 84007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 170 °T Distance: 4.18 nm | No. 84008 (worked solution) |