Worksheet 148 · Skill 4
Two-bearing fix
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At 1425 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 112°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 0925 you take two bearings with a hand-bearing compass: Mill stack bears 182°M and Westfield church spire bears 289°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 1445 you take two bearings with a hand-bearing compass: Heron Point Light bears 233°M and Gannet Rock daybeacon bears 117°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 1120 you take two bearings with a hand-bearing compass: Mill stack bears 154°M and Gannet Rock daybeacon bears 072°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 0745 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 092°M and Mill stack bears 166°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 1455 you take two bearings with a hand-bearing compass: Westfield church spire bears 262°M and Mill stack bears 170°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 0725 you take two bearings with a hand-bearing compass: Mill stack bears 157°M and Heron Point Light bears 232°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 1605 you take two bearings with a hand-bearing compass: Heron Point Light bears 201°M and Gannet Rock daybeacon bears 107°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 Westfield church spire: 082 °T Distance: 2.52 nm | No. 148001 (worked solution) |
| 2 | Bearing from Red nun "2": 070 °T Distance: 0.90 nm | No. 148002 (worked solution) |
| 3 | Bearing from Red nun "2": 038 °T Distance: 1.73 nm | No. 148003 (worked solution) |
| 4 | Bearing from Green can "1": 153 °T Distance: 1.74 nm | No. 148004 (worked solution) |
| 5 | Bearing from Green can "3": 226 °T Distance: 1.90 nm | No. 148005 (worked solution) |
| 6 | Bearing from Green can "3": 307 °T Distance: 2.45 nm | No. 148006 (worked solution) |
| 7 | Bearing from Red nun "2": 245 °T Distance: 0.81 nm | No. 148007 (worked solution) |
| 8 | Bearing from Red nun "2": 305 °T Distance: 1.98 nm | No. 148008 (worked solution) |