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Worksheet 503 · 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 1630 you take two bearings with a hand-bearing compass: Westfield church spire bears 297°M and Mill stack bears 203°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  

  2. At 1225 you take two bearings with a hand-bearing compass: Mill stack bears 213°M and Gannet Rock daybeacon bears 139°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 1735 you take two bearings with a hand-bearing compass: Kittle water tank bears 195°M and Gannet Rock daybeacon bears 318°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  

  4. At 0915 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 073°M and Mill stack bears 188°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 0935 you take two bearings with a hand-bearing compass: Kittle water tank bears 159°M and Heron Point Light bears 257°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  

  6. At 1040 you take two bearings with a hand-bearing compass: Heron Point Light bears 262°M and Mill stack 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 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 1105 you take two bearings with a hand-bearing compass: Westfield church spire bears 265°M and Mill stack bears 180°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 1215 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 135°M and Heron Point Light bears 249°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 "3": 159 °T
Distance: 1.93 nm
No. 503001 (worked solution)
2Bearing from Tern Island tower: 158 °T
Distance: 1.48 nm
No. 503002 (worked solution)
3Bearing from Tern Island tower: 139 °T
Distance: 5.20 nm
No. 503003 (worked solution)
4Bearing from Red nun "2": 142 °T
Distance: 2.01 nm
No. 503004 (worked solution)
5Bearing from Tern Island tower: 146 °T
Distance: 2.45 nm
No. 503005 (worked solution)
6Bearing from Green can "3": 162 °T
Distance: 1.85 nm
No. 503006 (worked solution)
7Bearing from Green can "3": 331 °T
Distance: 1.73 nm
No. 503007 (worked solution)
8Bearing from Tern Island tower: 164 °T
Distance: 1.47 nm
No. 503008 (worked solution)