Worksheet 442 · Skill 4
Two-bearing fix
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At 1010 you take two bearings with a hand-bearing compass: Kittle water tank bears 154°M and Mill stack 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 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 0800 you take two bearings with a hand-bearing compass: Kittle water tank bears 163°M and Heron Point Light bears 251°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 1435 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 129°M and Westfield church spire bears 227°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 1200 you take two bearings with a hand-bearing compass: Mill stack bears 205°M and Westfield church spire bears 288°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 129°M and Westfield church spire 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 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 1225 you take two bearings with a hand-bearing compass: Westfield church spire bears 314°M and Gannet Rock daybeacon bears 080°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 1335 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 134°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 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 1705 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 315°M and Kittle water tank 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 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 Gannet Rock daybeacon: 310 °T Distance: 1.57 nm | No. 442001 (worked solution) |
| 2 | Bearing from Gannet Rock daybeacon: 338 °T Distance: 1.36 nm | No. 442002 (worked solution) |
| 3 | Bearing from Green can "3": 316 °T Distance: 4.63 nm | No. 442003 (worked solution) |
| 4 | Bearing from Green can "3": 126 °T Distance: 1.39 nm | No. 442004 (worked solution) |
| 5 | Bearing from Green can "3": 316 °T Distance: 4.38 nm | No. 442005 (worked solution) |
| 6 | Bearing from Green can "1": 166 °T Distance: 1.01 nm | No. 442006 (worked solution) |
| 7 | Bearing from Tern Island tower: 269 °T Distance: 1.48 nm | No. 442007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 178 °T Distance: 5.70 nm | No. 442008 (worked solution) |