Worksheet 165 · Skill 4
Two-bearing fix
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At 1750 you take two bearings with a hand-bearing compass: Westfield church spire bears 269°M and Mill stack bears 157°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 1350 you take two bearings with a hand-bearing compass: Heron Point Light bears 230°M and Mill stack bears 156°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 0825 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 118°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 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 1515 you take two bearings with a hand-bearing compass: Westfield church spire bears 266°M and Mill stack bears 152°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 1225 you take two bearings with a hand-bearing compass: Mill stack bears 167°M and Westfield church spire bears 246°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 1610 you take two bearings with a hand-bearing compass: Kittle water tank bears 168°M and Heron Point Light bears 250°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 1025 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 096°M and Heron Point Light bears 176°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 1040 you take two bearings with a hand-bearing compass: Mill stack bears 158°M and Westfield church spire bears 287°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 Red nun "2": 312 °T Distance: 2.60 nm | No. 165001 (worked solution) |
| 2 | Bearing from Red nun "2": 249 °T Distance: 0.89 nm | No. 165002 (worked solution) |
| 3 | Bearing from Red nun "2": 345 °T Distance: 2.13 nm | No. 165003 (worked solution) |
| 4 | Bearing from Green can "1": 319 °T Distance: 3.07 nm | No. 165004 (worked solution) |
| 5 | Bearing from Red nun "2": 338 °T Distance: 3.45 nm | No. 165005 (worked solution) |
| 6 | Bearing from Gannet Rock daybeacon: 354 °T Distance: 1.59 nm | No. 165006 (worked solution) |
| 7 | Bearing from Westfield church spire: 135 °T Distance: 2.17 nm | No. 165007 (worked solution) |
| 8 | Bearing from Red nun "2": 303 °T Distance: 1.60 nm | No. 165008 (worked solution) |