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Worksheet 302 · Skill 4

Two-bearing fix

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  1. At 1600 you take two bearings with a hand-bearing compass: Westfield church spire bears 285°M and Heron Point Light bears 175°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 1220 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 082°M and Westfield church spire bears 314°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  

  3. At 1800 you take two bearings with a hand-bearing compass: Heron Point Light bears 198°M and Gannet Rock daybeacon bears 118°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 0725 you take two bearings with a hand-bearing compass: Westfield church spire bears 225°M and Heron Point Light bears 171°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  

  5. At 1650 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 133°M and Heron Point Light bears 202°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 1005 you take two bearings with a hand-bearing compass: Heron Point Light bears 232°M and Mill stack 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 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 0705 you take two bearings with a hand-bearing compass: Heron Point Light bears 220°M and Mill stack bears 162°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  

  8. At 1400 you take two bearings with a hand-bearing compass: Mill stack bears 206°M and Gannet Rock daybeacon bears 126°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 Green can "1": 306 °T
Distance: 3.09 nm
No. 302001 (worked solution)
2Bearing from Green can "1": 176 °T
Distance: 0.83 nm
No. 302002 (worked solution)
3Bearing from Red nun "2": 328 °T
Distance: 2.88 nm
No. 302003 (worked solution)
4Bearing from Green can "1": 313 °T
Distance: 4.17 nm
No. 302004 (worked solution)
5Bearing from Green can "3": 327 °T
Distance: 3.78 nm
No. 302005 (worked solution)
6Bearing from Green can "3": 253 °T
Distance: 1.21 nm
No. 302006 (worked solution)
7Bearing from Red nun "2": 304 °T
Distance: 0.92 nm
No. 302007 (worked solution)
8Bearing from Tern Island tower: 186 °T
Distance: 1.43 nm
No. 302008 (worked solution)