Worksheet 939 · Skill 4
Two-bearing fix
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At 1555 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 069°M and Westfield church spire bears 311°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 Mill stack to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Mill stack: ________ °T Distance: ________ nm
At 1425 you take two bearings with a hand-bearing compass: Heron Point Light bears 201°M and Gannet Rock daybeacon bears 126°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 0750 you take two bearings with a hand-bearing compass: Mill stack bears 164°M and Westfield church spire bears 245°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 1315 you take two bearings with a hand-bearing compass: Westfield church spire bears 265°M and Mill stack bears 191°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 1245 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 326°M and Kittle water tank 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 Mill stack to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Mill stack: ________ °T Distance: ________ nm
At 1650 you take two bearings with a hand-bearing compass: Westfield church spire bears 244°M and Gannet Rock daybeacon bears 123°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 1505 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 107°M and Mill stack bears 167°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 1545 you take two bearings with a hand-bearing compass: Westfield church spire bears 268°M and Kittle water tank bears 146°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 Mill stack: 348 °T Distance: 1.64 nm | No. 939001 (worked solution) |
| 2 | Bearing from Green can "3": 315 °T Distance: 3.36 nm | No. 939002 (worked solution) |
| 3 | Bearing from Red nun "2": 331 °T Distance: 3.47 nm | No. 939003 (worked solution) |
| 4 | Bearing from Tern Island tower: 277 °T Distance: 1.36 nm | No. 939004 (worked solution) |
| 5 | Bearing from Mill stack: 073 °T Distance: 5.61 nm | No. 939005 (worked solution) |
| 6 | Bearing from Red nun "2": 333 °T Distance: 3.53 nm | No. 939006 (worked solution) |
| 7 | Bearing from Red nun "2": 332 °T Distance: 1.05 nm | No. 939007 (worked solution) |
| 8 | Bearing from Tern Island tower: 263 °T Distance: 1.44 nm | No. 939008 (worked solution) |