Worksheet 474 · Skill 4
Two-bearing fix
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At 0745 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 111°M and Mill stack bears 165°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 1155 you take two bearings with a hand-bearing compass: Heron Point Light bears 193°M and Gannet Rock daybeacon bears 131°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 0930 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 091°M and Mill stack 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 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 1535 you take two bearings with a hand-bearing compass: Westfield church spire bears 277°M and Heron Point Light bears 210°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 1530 you take two bearings with a hand-bearing compass: Heron Point Light bears 249°M and Kittle water tank bears 157°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: Mill stack bears 150°M and Westfield church spire bears 233°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 1310 you take two bearings with a hand-bearing compass: Westfield church spire bears 323°M and Gannet Rock daybeacon bears 081°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 1355 you take two bearings with a hand-bearing compass: Mill stack bears 179°M and Gannet Rock daybeacon bears 115°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 Red nun "2": 329 °T Distance: 1.66 nm | No. 474001 (worked solution) |
| 2 | Bearing from Westfield church spire: 041 °T Distance: 3.95 nm | No. 474002 (worked solution) |
| 3 | Bearing from Red nun "2": 242 °T Distance: 1.35 nm | No. 474003 (worked solution) |
| 4 | Bearing from Red nun "2": 326 °T Distance: 1.70 nm | No. 474004 (worked solution) |
| 5 | Bearing from Tern Island tower: 149 °T Distance: 1.44 nm | No. 474005 (worked solution) |
| 6 | Bearing from Green can "1": 317 °T Distance: 4.01 nm | No. 474006 (worked solution) |
| 7 | Bearing from Heron Point Light: 077 °T Distance: 1.16 nm | No. 474007 (worked solution) |
| 8 | Bearing from Green can "3": 302 °T Distance: 0.96 nm | No. 474008 (worked solution) |