Worksheet 237 · Skill 4
Two-bearing fix
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At 1630 you take two bearings with a hand-bearing compass: Kittle water tank bears 159°M and Heron Point Light bears 255°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 1355 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 081°M and Mill stack 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 1440 you take two bearings with a hand-bearing compass: Mill stack bears 219°M and Gannet Rock daybeacon bears 134°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 1305 you take two bearings with a hand-bearing compass: Mill stack bears 183°M and Westfield church spire bears 290°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 1015 you take two bearings with a hand-bearing compass: Mill stack bears 158°M and Heron Point Light bears 209°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 1125 you take two bearings with a hand-bearing compass: Mill stack bears 189°M and Heron Point Light bears 242°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 1045 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 131°M and Mill stack 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 "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 1150 you take two bearings with a hand-bearing compass: Kittle water tank bears 148°M and Mill stack bears 207°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Gannet Rock daybeacon: 321 °T Distance: 0.88 nm | No. 237001 (worked solution) |
| 2 | Bearing from Red nun "2": 120 °T Distance: 1.84 nm | No. 237002 (worked solution) |
| 3 | Bearing from Tern Island tower: 153 °T Distance: 2.06 nm | No. 237003 (worked solution) |
| 4 | Bearing from Red nun "2": 078 °T Distance: 0.95 nm | No. 237004 (worked solution) |
| 5 | Bearing from Red nun "2": 301 °T Distance: 1.50 nm | No. 237005 (worked solution) |
| 6 | Bearing from Red nun "2": 065 °T Distance: 1.49 nm | No. 237006 (worked solution) |
| 7 | Bearing from Green can "3": 004 °T Distance: 1.39 nm | No. 237007 (worked solution) |
| 8 | Bearing from Tern Island tower: 183 °T Distance: 1.46 nm | No. 237008 (worked solution) |