Worksheet 336 · Skill 4
Two-bearing fix
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At 1750 you take two bearings with a hand-bearing compass: Mill stack bears 192°M and Gannet Rock daybeacon bears 069°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 0955 you take two bearings with a hand-bearing compass: Heron Point Light bears 191°M and Gannet Rock daybeacon bears 125°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 1535 you take two bearings with a hand-bearing compass: Westfield church spire bears 230°M and Gannet Rock daybeacon bears 132°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 0745 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 100°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 1145 you take two bearings with a hand-bearing compass: Mill stack bears 156°M and Westfield church spire bears 264°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 0955 you take two bearings with a hand-bearing compass: Westfield church spire bears 288°M and Mill stack bears 217°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 1505 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 124°M and Westfield church spire bears 230°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 1055 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 262°M and Kittle water tank bears 204°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": 143 °T Distance: 2.28 nm | No. 336001 (worked solution) |
| 2 | Bearing from Westfield church spire: 046 °T Distance: 3.19 nm | No. 336002 (worked solution) |
| 3 | Bearing from Green can "3": 321 °T Distance: 4.49 nm | No. 336003 (worked solution) |
| 4 | Bearing from Green can "3": 230 °T Distance: 1.04 nm | No. 336004 (worked solution) |
| 5 | Bearing from Red nun "2": 311 °T Distance: 2.87 nm | No. 336005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 267 °T Distance: 1.51 nm | No. 336006 (worked solution) |
| 7 | Bearing from Red nun "2": 328 °T Distance: 4.24 nm | No. 336007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 174 °T Distance: 3.14 nm | No. 336008 (worked solution) |