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Worksheet 266 · Skill 4

Two-bearing fix

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  1. At 1030 you take two bearings with a hand-bearing compass: Heron Point Light bears 193°M and Gannet Rock daybeacon bears 131°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 Westfield church spire to the fix, and the distance.

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

    Bearing from Westfield church spire: ________ °T   Distance: ________ nm  

  2. At 0820 you take two bearings with a hand-bearing compass: Kittle water tank bears 146°M and Mill stack bears 216°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  

  3. At 1105 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 116°M and Heron Point Light bears 198°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 1355 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 118°M and Heron Point Light bears 226°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  

  5. At 1655 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 089°M and Westfield church spire bears 325°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 Heron Point Light to the fix, and the distance.

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

    Bearing from Heron Point Light: ________ °T   Distance: ________ nm  

  6. At 1550 you take two bearings with a hand-bearing compass: Westfield church spire bears 242°M and Heron Point Light bears 179°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 1625 you take two bearings with a hand-bearing compass: Heron Point Light bears 222°M and Gannet Rock daybeacon bears 102°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 0905 you take two bearings with a hand-bearing compass: Heron Point Light bears 253°M and Mill stack bears 182°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 Westfield church spire: 041 °T
Distance: 3.95 nm
No. 266001 (worked solution)
2Bearing from Gannet Rock daybeacon: 280 °T
Distance: 1.44 nm
No. 266002 (worked solution)
3Bearing from Red nun "2": 324 °T
Distance: 2.71 nm
No. 266003 (worked solution)
4Bearing from Green can "3": 314 °T
Distance: 1.05 nm
No. 266004 (worked solution)
5Bearing from Heron Point Light: 013 °T
Distance: 1.05 nm
No. 266005 (worked solution)
6Bearing from Green can "1": 320 °T
Distance: 3.77 nm
No. 266006 (worked solution)
7Bearing from Red nun "2": 306 °T
Distance: 0.82 nm
No. 266007 (worked solution)
8Bearing from Red nun "2": 119 °T
Distance: 1.06 nm
No. 266008 (worked solution)