Worksheet 911 · Skill 4
Two-bearing fix
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At 1225 you take two bearings with a hand-bearing compass: Mill stack bears 176°M and Heron Point Light bears 236°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 1055 you take two bearings with a hand-bearing compass: Mill stack bears 192°M and Westfield church spire bears 257°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 0955 you take two bearings with a hand-bearing compass: Heron Point Light bears 178°M and Gannet Rock daybeacon bears 095°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 1005 you take two bearings with a hand-bearing compass: Westfield church spire bears 331°M and Gannet Rock daybeacon bears 087°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: Mill stack bears 167°M and Heron Point Light bears 226°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 1730 you take two bearings with a hand-bearing compass: Heron Point Light bears 175°M and Westfield church spire bears 291°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 0820 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 132°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 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 1130 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 284°M and Kittle water tank bears 212°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 "3": 243 °T Distance: 1.02 nm | No. 911001 (worked solution) |
| 2 | Bearing from Tern Island tower: 314 °T Distance: 1.62 nm | No. 911002 (worked solution) |
| 3 | Bearing from Green can "1": 279 °T Distance: 2.10 nm | No. 911003 (worked solution) |
| 4 | Bearing from Green can "1": 249 °T Distance: 1.89 nm | No. 911004 (worked solution) |
| 5 | Bearing from Green can "1": 013 °T Distance: 1.17 nm | No. 911005 (worked solution) |
| 6 | Bearing from Green can "1": 305 °T Distance: 2.98 nm | No. 911006 (worked solution) |
| 7 | Bearing from Westfield church spire: 045 °T Distance: 4.13 nm | No. 911007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 174 °T Distance: 4.15 nm | No. 911008 (worked solution) |