Worksheet 607 · Skill 4
Two-bearing fix
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At 1215 you take two bearings with a hand-bearing compass: Kittle water tank bears 152°M and Heron Point Light bears 256°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 1740 you take two bearings with a hand-bearing compass: Mill stack bears 183°M and Heron Point Light bears 277°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 0925 you take two bearings with a hand-bearing compass: Heron Point Light bears 198°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 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 0820 you take two bearings with a hand-bearing compass: Mill stack bears 143°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 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 1115 you take two bearings with a hand-bearing compass: Heron Point Light bears 252°M and Westfield church spire bears 309°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 0930 you take two bearings with a hand-bearing compass: Heron Point Light bears 193°M and Gannet Rock daybeacon bears 122°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 1300 you take two bearings with a hand-bearing compass: Kittle water tank bears 199°M and Gannet Rock daybeacon bears 284°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
At 1200 you take two bearings with a hand-bearing compass: Mill stack bears 164°M and Gannet Rock daybeacon bears 097°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Gannet Rock daybeacon: 292 °T Distance: 1.05 nm | No. 607001 (worked solution) |
| 2 | Bearing from Green can "1": 130 °T Distance: 2.19 nm | No. 607002 (worked solution) |
| 3 | Bearing from Green can "1": 319 °T Distance: 1.90 nm | No. 607003 (worked solution) |
| 4 | Bearing from Green can "1": 283 °T Distance: 1.59 nm | No. 607004 (worked solution) |
| 5 | Bearing from Red nun "2": 199 °T Distance: 1.12 nm | No. 607005 (worked solution) |
| 6 | Bearing from Westfield church spire: 055 °T Distance: 2.98 nm | No. 607006 (worked solution) |
| 7 | Bearing from Bell buoy "HS": 183 °T Distance: 4.05 nm | No. 607007 (worked solution) |
| 8 | Bearing from Green can "3": 242 °T Distance: 1.90 nm | No. 607008 (worked solution) |