Worksheet 811 · Skill 4
Two-bearing fix
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At 1720 you take two bearings with a hand-bearing compass: Westfield church spire bears 306°M and Heron Point Light bears 184°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 1625 you take two bearings with a hand-bearing compass: Westfield church spire bears 318°M and Heron Point Light bears 246°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 1315 you take two bearings with a hand-bearing compass: Westfield church spire bears 308°M and Gannet Rock daybeacon bears 075°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 1630 you take two bearings with a hand-bearing compass: Westfield church spire bears 249°M and Mill stack bears 173°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 1625 you take two bearings with a hand-bearing compass: Heron Point Light bears 234°M and Westfield church spire bears 286°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 1320 you take two bearings with a hand-bearing compass: Westfield church spire bears 300°M and Mill stack bears 219°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 1240 you take two bearings with a hand-bearing compass: Mill stack bears 212°M and Kittle water tank 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 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 1140 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 274°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 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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "1": 298 °T Distance: 2.18 nm | No. 811001 (worked solution) |
| 2 | Bearing from Green can "1": 222 °T Distance: 0.92 nm | No. 811002 (worked solution) |
| 3 | Bearing from Green can "1": 127 °T Distance: 1.70 nm | No. 811003 (worked solution) |
| 4 | Bearing from Green can "3": 323 °T Distance: 3.11 nm | No. 811004 (worked solution) |
| 5 | Bearing from Green can "3": 254 °T Distance: 0.90 nm | No. 811005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 236 °T Distance: 2.70 nm | No. 811006 (worked solution) |
| 7 | Bearing from Gannet Rock daybeacon: 296 °T Distance: 1.70 nm | No. 811007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 175 °T Distance: 3.68 nm | No. 811008 (worked solution) |