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Worksheet 21 · Skill 4

Two-bearing fix

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  1. At 1050 you take two bearings with a hand-bearing compass: Westfield church spire bears 326°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 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  

  2. At 1015 you take two bearings with a hand-bearing compass: Heron Point Light bears 262°M and Mill stack 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 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 0810 you take two bearings with a hand-bearing compass: Heron Point Light bears 179°M and Westfield church spire bears 231°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 1735 you take two bearings with a hand-bearing compass: Kittle water tank bears 188°M and Gannet Rock daybeacon bears 298°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  

  5. At 1155 you take two bearings with a hand-bearing compass: Westfield church spire bears 239°M and Heron Point Light 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  

  6. At 1420 you take two bearings with a hand-bearing compass: Heron Point Light bears 230°M and Gannet Rock daybeacon bears 112°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  

  7. At 0730 you take two bearings with a hand-bearing compass: Mill stack bears 190°M and Westfield church spire bears 301°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 1755 you take two bearings with a hand-bearing compass: Mill stack bears 209°M and Heron Point Light bears 275°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 Heron Point Light: 004 °T
Distance: 1.13 nm
No. 21001 (worked solution)
2Bearing from Red nun "2": 143 °T
Distance: 1.41 nm
No. 21002 (worked solution)
3Bearing from Red nun "2": 311 °T
Distance: 4.07 nm
No. 21003 (worked solution)
4Bearing from Bell buoy "HS": 190 °T
Distance: 4.42 nm
No. 21004 (worked solution)
5Bearing from Red nun "2": 313 °T
Distance: 3.80 nm
No. 21005 (worked solution)
6Bearing from Green can "3": 288 °T
Distance: 0.81 nm
No. 21006 (worked solution)
7Bearing from Red nun "2": 130 °T
Distance: 1.74 nm
No. 21007 (worked solution)
8Bearing from Red nun "2": 133 °T
Distance: 2.69 nm
No. 21008 (worked solution)