Worksheet 403 · Skill 4
Two-bearing fix
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At 1010 you take two bearings with a hand-bearing compass: Heron Point Light bears 220°M and Mill stack bears 169°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 1240 you take two bearings with a hand-bearing compass: Heron Point Light bears 175°M and Westfield church spire bears 229°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 1440 you take two bearings with a hand-bearing compass: Westfield church spire bears 279°M and Mill stack bears 186°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 1030 you take two bearings with a hand-bearing compass: Heron Point Light bears 207°M and Gannet Rock daybeacon bears 097°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 0850 you take two bearings with a hand-bearing compass: Kittle water tank bears 173°M and Mill stack bears 223°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 1635 you take two bearings with a hand-bearing compass: Westfield church spire bears 246°M and Mill stack bears 162°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 1415 you take two bearings with a hand-bearing compass: Mill stack bears 150°M and Westfield church spire 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 0910 you take two bearings with a hand-bearing compass: Westfield church spire bears 305°M and Mill stack bears 188°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": 342 °T Distance: 1.19 nm | No. 403001 (worked solution) |
| 2 | Bearing from Green can "1": 318 °T Distance: 4.11 nm | No. 403002 (worked solution) |
| 3 | Bearing from Red nun "2": 043 °T Distance: 1.65 nm | No. 403003 (worked solution) |
| 4 | Bearing from Green can "1": 299 °T Distance: 1.23 nm | No. 403004 (worked solution) |
| 5 | Bearing from Gannet Rock daybeacon: 009 °T Distance: 1.62 nm | No. 403005 (worked solution) |
| 6 | Bearing from Red nun "2": 327 °T Distance: 3.42 nm | No. 403006 (worked solution) |
| 7 | Bearing from Green can "1": 317 °T Distance: 4.41 nm | No. 403007 (worked solution) |
| 8 | Bearing from Red nun "2": 141 °T Distance: 1.98 nm | No. 403008 (worked solution) |