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Worksheet 13 · Skill 4

Two-bearing fix

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  1. At 1200 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 063°M and Westfield church spire bears 297°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 0720 you take two bearings with a hand-bearing compass: Heron Point Light bears 251°M and Kittle water tank bears 145°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 1405 you take two bearings with a hand-bearing compass: Heron Point Light bears 250°M and Kittle water tank bears 149°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 1745 you take two bearings with a hand-bearing compass: Mill stack bears 188°M and Westfield church spire bears 310°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 1545 you take two bearings with a hand-bearing compass: Westfield church spire bears 278°M and Kittle water tank bears 156°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 1605 you take two bearings with a hand-bearing compass: Kittle water tank bears 234°M and Gannet Rock daybeacon bears 310°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 1355 you take two bearings with a hand-bearing compass: Mill stack bears 225°M and Kittle water tank bears 151°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  

  8. At 1300 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 068°M and Westfield church spire bears 309°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 Mill stack to the fix, and the distance.

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

    Bearing from Mill stack: ________ °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": 142 °T
Distance: 2.71 nm
No. 13001 (worked solution)
2Bearing from Green can "3": 100 °T
Distance: 1.68 nm
No. 13002 (worked solution)
3Bearing from Tern Island tower: 173 °T
Distance: 1.66 nm
No. 13003 (worked solution)
4Bearing from Green can "1": 131 °T
Distance: 2.42 nm
No. 13004 (worked solution)
5Bearing from Tern Island tower: 153 °T
Distance: 1.39 nm
No. 13005 (worked solution)
6Bearing from Bell buoy "HS": 175 °T
Distance: 5.59 nm
No. 13006 (worked solution)
7Bearing from Tern Island tower: 158 °T
Distance: 2.76 nm
No. 13007 (worked solution)
8Bearing from Mill stack: 359 °T
Distance: 1.69 nm
No. 13008 (worked solution)