Worksheet 417 · Skill 4
Two-bearing fix
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At 0820 you take two bearings with a hand-bearing compass: Westfield church spire bears 305°M and Mill stack bears 195°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 1625 you take two bearings with a hand-bearing compass: Heron Point Light bears 212°M and Gannet Rock daybeacon bears 106°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 0810 you take two bearings with a hand-bearing compass: Westfield church spire bears 238°M and Gannet Rock daybeacon bears 132°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 1000 you take two bearings with a hand-bearing compass: Heron Point Light bears 256°M and Mill stack bears 204°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 1635 you take two bearings with a hand-bearing compass: Heron Point Light bears 256°M and Mill stack bears 182°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 1635 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 126°M and Heron Point Light bears 235°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: Heron Point Light bears 175°M and Westfield church spire bears 270°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 1400 you take two bearings with a hand-bearing compass: Westfield church spire bears 311°M and Heron Point Light bears 252°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 138 °T Distance: 2.24 nm | No. 417001 (worked solution) |
| 2 | Bearing from Red nun "2": 312 °T Distance: 1.39 nm | No. 417002 (worked solution) |
| 3 | Bearing from Green can "3": 324 °T Distance: 3.92 nm | No. 417003 (worked solution) |
| 4 | Bearing from Green can "3": 139 °T Distance: 1.47 nm | No. 417004 (worked solution) |
| 5 | Bearing from Red nun "2": 127 °T Distance: 1.18 nm | No. 417005 (worked solution) |
| 6 | Bearing from Green can "3": 027 °T Distance: 0.91 nm | No. 417006 (worked solution) |
| 7 | Bearing from Green can "1": 310 °T Distance: 3.33 nm | No. 417007 (worked solution) |
| 8 | Bearing from Red nun "2": 206 °T Distance: 1.26 nm | No. 417008 (worked solution) |