Worksheet 91 · Skill 4
Two-bearing fix
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At 1640 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 121°M and Heron Point Light bears 201°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 0730 you take two bearings with a hand-bearing compass: Westfield church spire bears 256°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 1705 you take two bearings with a hand-bearing compass: Heron Point Light bears 272°M and Gannet Rock daybeacon bears 349°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 Kittle water tank to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Kittle water tank: ________ °T Distance: ________ nm
At 1045 you take two bearings with a hand-bearing compass: Mill stack bears 160°M and Westfield church spire bears 239°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 1425 you take two bearings with a hand-bearing compass: Mill stack bears 157°M and Westfield church spire bears 282°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 1235 you take two bearings with a hand-bearing compass: Westfield church spire bears 299°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 "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 1440 you take two bearings with a hand-bearing compass: Heron Point Light bears 191°M and Gannet Rock daybeacon bears 110°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 0815 you take two bearings with a hand-bearing compass: Mill stack bears 217°M and Kittle water tank bears 153°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 335 °T Distance: 2.95 nm | No. 91001 (worked solution) |
| 2 | Bearing from Green can "3": 336 °T Distance: 2.48 nm | No. 91002 (worked solution) |
| 3 | Bearing from Kittle water tank: 330 °T Distance: 1.93 nm | No. 91003 (worked solution) |
| 4 | Bearing from Red nun "2": 324 °T Distance: 3.75 nm | No. 91004 (worked solution) |
| 5 | Bearing from Red nun "2": 306 °T Distance: 1.99 nm | No. 91005 (worked solution) |
| 6 | Bearing from Green can "3": 246 °T Distance: 2.29 nm | No. 91006 (worked solution) |
| 7 | Bearing from Westfield church spire: 085 °T Distance: 2.16 nm | No. 91007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 302 °T Distance: 1.27 nm | No. 91008 (worked solution) |