Worksheet 138 · Skill 4
Two-bearing fix
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At 0950 you take two bearings with a hand-bearing compass: Westfield church spire bears 323°M and Gannet Rock daybeacon bears 085°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 Heron Point Light to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Heron Point Light: ________ °T Distance: ________ nm
At 1755 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 107°M and Mill stack bears 175°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 1455 you take two bearings with a hand-bearing compass: Mill stack bears 184°M and Gannet Rock daybeacon bears 094°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 1615 you take two bearings with a hand-bearing compass: Mill stack bears 162°M and Gannet Rock daybeacon bears 084°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 1420 you take two bearings with a hand-bearing compass: Mill stack bears 141°M and Heron Point Light bears 268°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 1245 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 130°M and Westfield church spire bears 249°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 1005 you take two bearings with a hand-bearing compass: Heron Point Light bears 255°M and Mill stack bears 158°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 1550 you take two bearings with a hand-bearing compass: Mill stack bears 202°M and Westfield church spire bears 283°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Heron Point Light: 051 °T Distance: 1.00 nm | No. 138001 (worked solution) |
| 2 | Bearing from Red nun "2": 017 °T Distance: 0.84 nm | No. 138002 (worked solution) |
| 3 | Bearing from Red nun "2": 101 °T Distance: 1.04 nm | No. 138003 (worked solution) |
| 4 | Bearing from Red nun "2": 180 °T Distance: 1.11 nm | No. 138004 (worked solution) |
| 5 | Bearing from Green can "1": 191 °T Distance: 1.17 nm | No. 138005 (worked solution) |
| 6 | Bearing from Green can "3": 325 °T Distance: 3.09 nm | No. 138006 (worked solution) |
| 7 | Bearing from Red nun "2": 192 °T Distance: 1.15 nm | No. 138007 (worked solution) |
| 8 | Bearing from Green can "3": 101 °T Distance: 1.10 nm | No. 138008 (worked solution) |