Worksheet 469 · Skill 4
Two-bearing fix
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At 1445 you take two bearings with a hand-bearing compass: Heron Point Light bears 259°M and Kittle water tank bears 156°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 1440 you take two bearings with a hand-bearing compass: Mill stack bears 169°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 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 0710 you take two bearings with a hand-bearing compass: Heron Point Light bears 193°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 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 1050 you take two bearings with a hand-bearing compass: Mill stack bears 181°M and Heron Point Light bears 238°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 1210 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 091°M and Westfield church spire bears 328°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 1305 you take two bearings with a hand-bearing compass: Westfield church spire bears 271°M and Mill stack bears 178°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 0925 you take two bearings with a hand-bearing compass: Heron Point Light bears 277°M and Gannet Rock daybeacon bears 044°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 1630 you take two bearings with a hand-bearing compass: Heron Point Light bears 231°M and Kittle water tank bears 144°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 Tern Island tower: 151 °T Distance: 2.66 nm | No. 469001 (worked solution) |
| 2 | Bearing from Green can "3": 316 °T Distance: 3.47 nm | No. 469002 (worked solution) |
| 3 | Bearing from Westfield church spire: 071 °T Distance: 2.47 nm | No. 469003 (worked solution) |
| 4 | Bearing from Red nun "2": 054 °T Distance: 0.93 nm | No. 469004 (worked solution) |
| 5 | Bearing from Heron Point Light: 353 °T Distance: 1.24 nm | No. 469005 (worked solution) |
| 6 | Bearing from Green can "3": 315 °T Distance: 1.39 nm | No. 469006 (worked solution) |
| 7 | Bearing from Mill stack: 051 °T Distance: 2.70 nm | No. 469007 (worked solution) |
| 8 | Bearing from Green can "3": 010 °T Distance: 1.16 nm | No. 469008 (worked solution) |