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Worksheet 67 · Skill 4

Two-bearing fix

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  1. At 1435 you take two bearings with a hand-bearing compass: Heron Point Light bears 196°M and Gannet Rock daybeacon bears 125°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 1335 you take two bearings with a hand-bearing compass: Mill stack bears 212°M and Westfield church spire bears 277°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 1405 you take two bearings with a hand-bearing compass: Mill stack bears 162°M and Gannet Rock daybeacon bears 109°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 0715 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 093°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 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 0830 you take two bearings with a hand-bearing compass: Mill stack bears 174°M and Westfield church spire bears 248°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  

  6. At 1710 you take two bearings with a hand-bearing compass: Heron Point Light bears 225°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 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 0810 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 073°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 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  

  8. At 1205 you take two bearings with a hand-bearing compass: Westfield church spire bears 298°M and Heron Point Light 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 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  

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: 054 °T
Distance: 3.39 nm
No. 67001 (worked solution)
2Bearing from Tern Island tower: 152 °T
Distance: 1.24 nm
No. 67002 (worked solution)
3Bearing from Red nun "2": 319 °T
Distance: 1.68 nm
No. 67003 (worked solution)
4Bearing from Green can "1": 276 °T
Distance: 1.22 nm
No. 67004 (worked solution)
5Bearing from Green can "3": 326 °T
Distance: 3.16 nm
No. 67005 (worked solution)
6Bearing from Green can "1": 001 °T
Distance: 0.92 nm
No. 67006 (worked solution)
7Bearing from Green can "1": 151 °T
Distance: 1.65 nm
No. 67007 (worked solution)
8Bearing from Green can "1": 307 °T
Distance: 1.97 nm
No. 67008 (worked solution)