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Worksheet 299 · Skill 4

Two-bearing fix

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  1. At 1100 you take two bearings with a hand-bearing compass: Mill stack bears 202°M and Gannet Rock daybeacon bears 094°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 1220 you take two bearings with a hand-bearing compass: Westfield church spire bears 273°M and Mill stack bears 163°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 1020 you take two bearings with a hand-bearing compass: Westfield church spire bears 282°M and Heron Point Light bears 208°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 0905 you take two bearings with a hand-bearing compass: Heron Point Light bears 165°M and Gannet Rock daybeacon bears 090°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 1405 you take two bearings with a hand-bearing compass: Mill stack bears 163°M and Westfield church spire bears 291°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 1230 you take two bearings with a hand-bearing compass: Heron Point Light bears 189°M and Gannet Rock daybeacon bears 099°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 1530 you take two bearings with a hand-bearing compass: Heron Point Light bears 217°M and Westfield church spire bears 278°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 0850 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 318°M and Kittle water tank bears 192°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": 141 °T
Distance: 1.34 nm
No. 299001 (worked solution)
2Bearing from Red nun "2": 324 °T
Distance: 2.00 nm
No. 299002 (worked solution)
3Bearing from Red nun "2": 313 °T
Distance: 1.65 nm
No. 299003 (worked solution)
4Bearing from Green can "1": 261 °T
Distance: 2.25 nm
No. 299004 (worked solution)
5Bearing from Red nun "2": 307 °T
Distance: 0.83 nm
No. 299005 (worked solution)
6Bearing from Green can "1": 296 °T
Distance: 1.92 nm
No. 299006 (worked solution)
7Bearing from Red nun "2": 340 °T
Distance: 1.42 nm
No. 299007 (worked solution)
8Bearing from Tern Island tower: 139 °T
Distance: 5.09 nm
No. 299008 (worked solution)