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Worksheet 825 · Skill 4

Two-bearing fix

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  1. At 0820 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 099°M and Heron Point Light bears 173°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  

  2. At 1415 you take two bearings with a hand-bearing compass: Heron Point Light bears 241°M and Mill stack bears 167°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  

  3. At 1525 you take two bearings with a hand-bearing compass: Westfield church spire bears 315°M and Heron Point Light bears 238°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  

  4. At 1630 you take two bearings with a hand-bearing compass: Mill stack bears 166°M and Heron Point Light bears 235°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 1105 you take two bearings with a hand-bearing compass: Westfield church spire bears 276°M and Mill stack bears 163°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  

  6. At 1215 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 117°M and Heron Point Light bears 224°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  

  7. At 1435 you take two bearings with a hand-bearing compass: Mill stack bears 160°M and Heron Point Light bears 231°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  

  8. At 0855 you take two bearings with a hand-bearing compass: Mill stack bears 184°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

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 Westfield church spire: 130 °T
Distance: 1.75 nm
No. 825001 (worked solution)
2Bearing from Green can "3": 229 °T
Distance: 1.79 nm
No. 825002 (worked solution)
3Bearing from Red nun "2": 229 °T
Distance: 1.58 nm
No. 825003 (worked solution)
4Bearing from Green can "3": 238 °T
Distance: 1.77 nm
No. 825004 (worked solution)
5Bearing from Red nun "2": 323 °T
Distance: 1.82 nm
No. 825005 (worked solution)
6Bearing from Green can "3": 307 °T
Distance: 1.21 nm
No. 825006 (worked solution)
7Bearing from Green can "3": 241 °T
Distance: 2.18 nm
No. 825007 (worked solution)
8Bearing from Red nun "2": 064 °T
Distance: 1.09 nm
No. 825008 (worked solution)