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Worksheet 655 · Skill 4

Two-bearing fix

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  1. At 0810 you take two bearings with a hand-bearing compass: Westfield church spire bears 305°M and Mill stack bears 222°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  

  2. At 1615 you take two bearings with a hand-bearing compass: Kittle water tank bears 142°M and Mill stack bears 193°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  

  3. At 1700 you take two bearings with a hand-bearing compass: Mill stack bears 196°M and Gannet Rock daybeacon bears 081°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 0900 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 087°M and Westfield church spire bears 321°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 Heron Point Light to the fix, and the distance.

    Tolerance: 2° and 0.15 nm (or 4 % of the distance).

    Bearing from Heron Point Light: ________ °T   Distance: ________ nm  

  5. At 1645 you take two bearings with a hand-bearing compass: Mill stack bears 154°M and Heron Point Light bears 210°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  

  6. At 1145 you take two bearings with a hand-bearing compass: Kittle water tank bears 184°M and Gannet Rock daybeacon bears 298°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  

  7. At 1520 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 264°M and Kittle water tank bears 191°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  

  8. At 1435 you take two bearings with a hand-bearing compass: Mill stack bears 187°M and Westfield church spire bears 251°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  

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 Red nun "2": 132 °T
Distance: 3.13 nm
No. 655001 (worked solution)
2Bearing from Tern Island tower: 230 °T
Distance: 1.63 nm
No. 655002 (worked solution)
3Bearing from Green can "3": 169 °T
Distance: 1.84 nm
No. 655003 (worked solution)
4Bearing from Heron Point Light: 040 °T
Distance: 1.13 nm
No. 655004 (worked solution)
5Bearing from Green can "1": 319 °T
Distance: 1.23 nm
No. 655005 (worked solution)
6Bearing from Tern Island tower: 134 °T
Distance: 4.28 nm
No. 655006 (worked solution)
7Bearing from Bell buoy "HS": 189 °T
Distance: 3.47 nm
No. 655007 (worked solution)
8Bearing from Tern Island tower: 311 °T
Distance: 2.40 nm
No. 655008 (worked solution)