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Worksheet 82 · Skill 4

Two-bearing fix

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  1. At 1355 you take two bearings with a hand-bearing compass: Westfield church spire bears 298°M and Heron Point Light bears 239°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  

  2. At 1615 you take two bearings with a hand-bearing compass: Heron Point Light bears 173°M and Gannet Rock daybeacon bears 095°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  

  3. At 0945 you take two bearings with a hand-bearing compass: Westfield church spire bears 250°M and Gannet Rock daybeacon bears 134°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  

  4. At 1310 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 130°M and Heron Point Light bears 217°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  

  5. At 0710 you take two bearings with a hand-bearing compass: Heron Point Light bears 220°M and Gannet Rock daybeacon bears 115°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  

  6. At 0850 you take two bearings with a hand-bearing compass: Kittle water tank bears 207°M and Gannet Rock daybeacon bears 265°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  

  7. At 1435 you take two bearings with a hand-bearing compass: Westfield church spire bears 256°M and Mill stack bears 185°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  

  8. At 0830 you take two bearings with a hand-bearing compass: Kittle water tank bears 187°M and Gannet Rock daybeacon bears 237°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

Practice Sheet No. 1 with the starting fixes of this worksheet 34 41 22 38 29 18 27 44 12 21 19 N VAR 7°W (invented) Heron Sound Heron Point Tern Island Westfield Kittle Gannet Rock Fl W 4s 52ft 14M TR TANK SPIRE STACK Dbn 1 2 3 HS 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Border scale: nautical miles (1 nm = 10 ticks) PRACTICE SHEET No. 1 · HERON SOUNDInvented for practice · NOT FOR NAVIGATION · Plotroom

Answer key

No.AnswersProblem
1Bearing from Green can "3": 232 °T
Distance: 1.79 nm
No. 82001 (worked solution)
2Bearing from Westfield church spire: 139 °T
Distance: 2.22 nm
No. 82002 (worked solution)
3Bearing from Green can "3": 335 °T
Distance: 2.99 nm
No. 82003 (worked solution)
4Bearing from Green can "3": 335 °T
Distance: 2.15 nm
No. 82004 (worked solution)
5Bearing from Green can "3": 296 °T
Distance: 1.53 nm
No. 82005 (worked solution)
6Bearing from Bell buoy "HS": 171 °T
Distance: 3.26 nm
No. 82006 (worked solution)
7Bearing from Tern Island tower: 294 °T
Distance: 2.24 nm
No. 82007 (worked solution)
8Bearing from Bell buoy "HS": 197 °T
Distance: 2.74 nm
No. 82008 (worked solution)