Worksheet 980 · Skill 4
Two-bearing fix
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At 0830 you take two bearings with a hand-bearing compass: Mill stack bears 156°M and Westfield church spire bears 267°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 280°M and Mill stack bears 206°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 1630 you take two bearings with a hand-bearing compass: Mill stack bears 200°M and Gannet Rock daybeacon bears 070°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 0940 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 008°M and Heron Point Light bears 277°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 1100 you take two bearings with a hand-bearing compass: Westfield church spire bears 301°M and Gannet Rock daybeacon bears 055°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 Mill stack to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Mill stack: ________ °T Distance: ________ nm
At 1010 you take two bearings with a hand-bearing compass: Mill stack bears 190°M and Westfield church spire 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 "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 0820 you take two bearings with a hand-bearing compass: Westfield church spire bears 255°M and Mill stack bears 181°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 1055 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 285°M and Kittle water tank bears 209°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 Bell buoy "HS" to the fix, and the distance.
Tolerance: 2° and 0.15 nm (or 4 % of the distance).
Bearing from Bell buoy "HS": ________ °T Distance: ________ nm
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Red nun "2": 310 °T Distance: 2.76 nm | No. 980001 (worked solution) |
| 2 | Bearing from Tern Island tower: 187 °T Distance: 1.48 nm | No. 980002 (worked solution) |
| 3 | Bearing from Red nun "2": 133 °T Distance: 2.32 nm | No. 980003 (worked solution) |
| 4 | Bearing from Kittle water tank: 305 °T Distance: 1.75 nm | No. 980004 (worked solution) |
| 5 | Bearing from Mill stack: 040 °T Distance: 2.52 nm | No. 980005 (worked solution) |
| 6 | Bearing from Green can "3": 009 °T Distance: 1.44 nm | No. 980006 (worked solution) |
| 7 | Bearing from Green can "3": 341 °T Distance: 2.56 nm | No. 980007 (worked solution) |
| 8 | Bearing from Bell buoy "HS": 176 °T Distance: 4.16 nm | No. 980008 (worked solution) |