Worksheet 151 · Skill 4
Two-bearing fix
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At 1235 you take two bearings with a hand-bearing compass: Kittle water tank bears 143°M and Mill stack bears 218°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 1220 you take two bearings with a hand-bearing compass: Mill stack bears 150°M and Westfield church spire bears 278°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 0940 you take two bearings with a hand-bearing compass: Kittle water tank bears 157°M and Heron Point Light bears 259°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 Tern Island tower to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Tern Island tower: ________ °T Distance: ________ nm
At 1715 you take two bearings with a hand-bearing compass: Westfield church spire bears 271°M and Mill stack bears 159°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 1410 you take two bearings with a hand-bearing compass: Kittle water tank bears 166°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 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 0855 you take two bearings with a hand-bearing compass: Heron Point Light bears 234°M and Mill stack bears 172°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 1745 you take two bearings with a hand-bearing compass: Mill stack bears 149°M and Westfield church spire bears 251°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 0840 you take two bearings with a hand-bearing compass: Westfield church spire bears 301°M and Mill stack bears 222°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 Gannet Rock daybeacon: 267 °T Distance: 1.43 nm | No. 151001 (worked solution) |
| 2 | Bearing from Green can "1": 314 °T Distance: 2.82 nm | No. 151002 (worked solution) |
| 3 | Bearing from Tern Island tower: 150 °T Distance: 2.67 nm | No. 151003 (worked solution) |
| 4 | Bearing from Red nun "2": 315 °T Distance: 2.36 nm | No. 151004 (worked solution) |
| 5 | Bearing from Gannet Rock daybeacon: 350 °T Distance: 1.27 nm | No. 151005 (worked solution) |
| 6 | Bearing from Green can "1": 037 °T Distance: 1.19 nm | No. 151006 (worked solution) |
| 7 | Bearing from Green can "1": 314 °T Distance: 3.63 nm | No. 151007 (worked solution) |
| 8 | Bearing from Gannet Rock daybeacon: 232 °T Distance: 2.76 nm | No. 151008 (worked solution) |