Worksheet 315 · Skill 4
Two-bearing fix
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At 0750 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 126°M and Heron Point Light 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 "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 0910 you take two bearings with a hand-bearing compass: Mill stack bears 174°M and Westfield church spire bears 280°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 1255 you take two bearings with a hand-bearing compass: Westfield church spire bears 267°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
At 1425 you take two bearings with a hand-bearing compass: Heron Point Light bears 258°M and Kittle water tank bears 159°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 1320 you take two bearings with a hand-bearing compass: Mill stack bears 161°M and Heron Point Light bears 213°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 1725 you take two bearings with a hand-bearing compass: Kittle water tank bears 202°M and Gannet Rock daybeacon bears 310°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 1345 you take two bearings with a hand-bearing compass: Westfield church spire bears 318°M and Heron Point Light bears 217°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 1450 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 107°M and Heron Point Light bears 196°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "3": 015 °T Distance: 0.94 nm | No. 315001 (worked solution) |
| 2 | Bearing from Red nun "2": 004 °T Distance: 1.17 nm | No. 315002 (worked solution) |
| 3 | Bearing from Green can "3": 356 °T Distance: 1.47 nm | No. 315003 (worked solution) |
| 4 | Bearing from Tern Island tower: 147 °T Distance: 2.58 nm | No. 315004 (worked solution) |
| 5 | Bearing from Red nun "2": 310 °T Distance: 1.32 nm | No. 315005 (worked solution) |
| 6 | Bearing from Bell buoy "HS": 184 °T Distance: 5.03 nm | No. 315006 (worked solution) |
| 7 | Bearing from Green can "1": 258 °T Distance: 1.15 nm | No. 315007 (worked solution) |
| 8 | Bearing from Green can "1": 324 °T Distance: 2.20 nm | No. 315008 (worked solution) |