Worksheet 226 · Skill 4
Two-bearing fix
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At 1745 you take two bearings with a hand-bearing compass: Westfield church spire bears 249°M and Mill stack bears 186°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 1050 you take two bearings with a hand-bearing compass: Westfield church spire bears 244°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
At 1420 you take two bearings with a hand-bearing compass: Mill stack bears 152°M and Gannet Rock daybeacon bears 085°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 0825 you take two bearings with a hand-bearing compass: Westfield church spire bears 283°M and Mill stack bears 198°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 1005 you take two bearings with a hand-bearing compass: Westfield church spire bears 321°M and Gannet Rock daybeacon bears 087°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 1715 you take two bearings with a hand-bearing compass: Heron Point Light bears 248°M and Gannet Rock daybeacon bears 149°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 0945 you take two bearings with a hand-bearing compass: Westfield church spire bears 273°M and Heron Point Light bears 195°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 1555 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 342°M and Heron Point Light bears 273°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 Kittle water tank to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Kittle water tank: ________ °T Distance: ________ nm
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Tern Island tower: 312 °T Distance: 2.61 nm | No. 226001 (worked solution) |
| 2 | Bearing from Green can "3": 321 °T Distance: 3.49 nm | No. 226002 (worked solution) |
| 3 | Bearing from Red nun "2": 207 °T Distance: 1.29 nm | No. 226003 (worked solution) |
| 4 | Bearing from Tern Island tower: 208 °T Distance: 2.00 nm | No. 226004 (worked solution) |
| 5 | Bearing from Heron Point Light: 040 °T Distance: 1.13 nm | No. 226005 (worked solution) |
| 6 | Bearing from Tern Island tower: 147 °T Distance: 1.32 nm | No. 226006 (worked solution) |
| 7 | Bearing from Red nun "2": 310 °T Distance: 2.46 nm | No. 226007 (worked solution) |
| 8 | Bearing from Kittle water tank: 335 °T Distance: 1.71 nm | No. 226008 (worked solution) |