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Worksheet 670 · Skill 4

Two-bearing fix

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Plot Pass worksheet. Plot Pass $1.95/month or $19.50/year · Free during preview. Plotroom · cedarpointmarina.net · invented chart, not for navigation.

  1. At 0720 you take two bearings with a hand-bearing compass: Westfield church spire bears 313°M and Heron Point Light bears 252°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: Westfield church spire bears 239°M and Mill stack bears 154°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  

  3. At 1205 you take two bearings with a hand-bearing compass: Heron Point Light bears 200°M and Gannet Rock daybeacon bears 122°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 1240 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 213°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  

  5. At 1400 you take two bearings with a hand-bearing compass: Mill stack bears 201°M and Westfield church spire bears 289°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 0705 you take two bearings with a hand-bearing compass: Heron Point Light bears 235°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 "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  

  7. At 1635 you take two bearings with a hand-bearing compass: Heron Point Light bears 199°M and Westfield church spire bears 276°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 1020 you take two bearings with a hand-bearing compass: Mill stack bears 180°M and Heron Point Light bears 241°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  

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": 210 °T
Distance: 1.40 nm
No. 670001 (worked solution)
2Bearing from Red nun "2": 312 °T
Distance: 3.81 nm
No. 670002 (worked solution)
3Bearing from Red nun "2": 336 °T
Distance: 3.11 nm
No. 670003 (worked solution)
4Bearing from Tern Island tower: 162 °T
Distance: 1.59 nm
No. 670004 (worked solution)
5Bearing from Green can "3": 136 °T
Distance: 1.20 nm
No. 670005 (worked solution)
6Bearing from Green can "1": 040 °T
Distance: 1.23 nm
No. 670006 (worked solution)
7Bearing from Red nun "2": 311 °T
Distance: 2.21 nm
No. 670007 (worked solution)
8Bearing from Green can "3": 223 °T
Distance: 0.87 nm
No. 670008 (worked solution)