Worksheet 169 · Skill 4
Two-bearing fix
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At 1420 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 081°M and Westfield church spire bears 317°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 1000 you take two bearings with a hand-bearing compass: Mill stack bears 198°M and Westfield church spire bears 281°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 1355 you take two bearings with a hand-bearing compass: Mill stack bears 166°M and Heron Point Light bears 216°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 1525 you take two bearings with a hand-bearing compass: Heron Point Light bears 208°M and Gannet Rock daybeacon bears 127°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 1450 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 103°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 "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 1750 you take two bearings with a hand-bearing compass: Mill stack bears 181°M and Westfield church spire bears 260°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 0910 you take two bearings with a hand-bearing compass: Heron Point Light bears 268°M and Mill stack bears 161°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 1315 you take two bearings with a hand-bearing compass: Westfield church spire bears 300°M and Gannet Rock daybeacon bears 052°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
Practice Sheet No. 1
Answer key
| No. | Answers | Problem |
|---|---|---|
| 1 | Bearing from Green can "1": 188 °T Distance: 1.00 nm | No. 169001 (worked solution) |
| 2 | Bearing from Green can "3": 086 °T Distance: 0.81 nm | No. 169002 (worked solution) |
| 3 | Bearing from Red nun "2": 330 °T Distance: 1.32 nm | No. 169003 (worked solution) |
| 4 | Bearing from Green can "3": 320 °T Distance: 2.77 nm | No. 169004 (worked solution) |
| 5 | Bearing from Green can "1": 013 °T Distance: 1.17 nm | No. 169005 (worked solution) |
| 6 | Bearing from Green can "3": 338 °T Distance: 2.12 nm | No. 169006 (worked solution) |
| 7 | Bearing from Green can "1": 142 °T Distance: 1.26 nm | No. 169007 (worked solution) |
| 8 | Bearing from Mill stack: 044 °T Distance: 2.72 nm | No. 169008 (worked solution) |