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Worksheet 131 · Skill 4

Two-bearing fix

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  1. At 1000 you take two bearings with a hand-bearing compass: Westfield church spire bears 316°M and Gannet Rock daybeacon bears 072°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  

  2. At 1040 you take two bearings with a hand-bearing compass: Mill stack bears 176°M and Westfield church spire bears 267°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 0850 you take two bearings with a hand-bearing compass: Westfield church spire bears 311°M and Heron Point Light 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 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 0830 you take two bearings with a hand-bearing compass: Mill stack bears 149°M and Heron Point Light bears 247°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  

  5. At 1600 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 278°M and Kittle water tank bears 200°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  

  6. At 0915 you take two bearings with a hand-bearing compass: Kittle water tank bears 195°M and Gannet Rock daybeacon bears 315°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 1205 you take two bearings with a hand-bearing compass: Mill stack bears 217°M and Westfield church spire bears 285°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  

  8. At 1325 you take two bearings with a hand-bearing compass: Heron Point Light bears 231°M and Gannet Rock daybeacon bears 113°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 Green can "1": 155 °T
Distance: 1.74 nm
No. 131001 (worked solution)
2Bearing from Green can "3": 316 °T
Distance: 1.77 nm
No. 131002 (worked solution)
3Bearing from Red nun "2": 207 °T
Distance: 1.25 nm
No. 131003 (worked solution)
4Bearing from Red nun "2": 217 °T
Distance: 1.38 nm
No. 131004 (worked solution)
5Bearing from Bell buoy "HS": 182 °T
Distance: 3.84 nm
No. 131005 (worked solution)
6Bearing from Bell buoy "HS": 186 °T
Distance: 5.11 nm
No. 131006 (worked solution)
7Bearing from Gannet Rock daybeacon: 283 °T
Distance: 1.32 nm
No. 131007 (worked solution)
8Bearing from Red nun "2": 030 °T
Distance: 1.36 nm
No. 131008 (worked solution)