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Worksheet 353 · Skill 4

Two-bearing fix

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  1. At 1440 you take two bearings with a hand-bearing compass: Kittle water tank bears 210°M and Gannet Rock daybeacon bears 274°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  

  2. At 0845 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 193°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 1420 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 255°M and Kittle water tank bears 183°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  

  4. At 1450 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 077°M and Westfield church spire bears 307°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 1440 you take two bearings with a hand-bearing compass: Westfield church spire bears 244°M and Mill stack 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 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  

  6. At 1145 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 124°M and Heron Point Light 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 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  

  7. At 0735 you take two bearings with a hand-bearing compass: Westfield church spire bears 298°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 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 1015 you take two bearings with a hand-bearing compass: Kittle water tank bears 152°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 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  

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 Bell buoy "HS": 172 °T
Distance: 3.70 nm
No. 353001 (worked solution)
2Bearing from Tern Island tower: 223 °T
Distance: 1.92 nm
No. 353002 (worked solution)
3Bearing from Bell buoy "HS": 197 °T
Distance: 3.49 nm
No. 353003 (worked solution)
4Bearing from Green can "1": 124 °T
Distance: 1.58 nm
No. 353004 (worked solution)
5Bearing from Red nun "2": 315 °T
Distance: 3.60 nm
No. 353005 (worked solution)
6Bearing from Red nun "2": 338 °T
Distance: 3.31 nm
No. 353006 (worked solution)
7Bearing from Red nun "2": 125 °T
Distance: 0.99 nm
No. 353007 (worked solution)
8Bearing from Gannet Rock daybeacon: 304 °T
Distance: 1.63 nm
No. 353008 (worked solution)