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Worksheet 242 · Skill 4

Two-bearing fix

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  1. At 0750 you take two bearings with a hand-bearing compass: Heron Point Light bears 279°M and Mill stack bears 205°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  

  2. At 0835 you take two bearings with a hand-bearing compass: Mill stack bears 209°M and Westfield church spire bears 293°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  

  3. At 1710 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 069°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 Mill stack to the fix, and the distance.

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

    Bearing from Mill stack: ________ °T   Distance: ________ nm  

  4. At 0810 you take two bearings with a hand-bearing compass: Heron Point Light bears 219°M and Westfield church spire bears 273°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 0905 you take two bearings with a hand-bearing compass: Heron Point Light bears 215°M and Mill stack bears 155°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  

  6. At 0920 you take two bearings with a hand-bearing compass: Mill stack bears 222°M and Westfield church spire bears 297°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  

  7. At 0750 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 120°M and Heron Point Light bears 227°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  

  8. At 0955 you take two bearings with a hand-bearing compass: Kittle water tank bears 186°M and Gannet Rock daybeacon bears 290°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  

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 Red nun "2": 141 °T
Distance: 2.74 nm
No. 242001 (worked solution)
2Bearing from Green can "3": 141 °T
Distance: 1.86 nm
No. 242002 (worked solution)
3Bearing from Mill stack: 021 °T
Distance: 2.42 nm
No. 242003 (worked solution)
4Bearing from Green can "3": 300 °T
Distance: 1.60 nm
No. 242004 (worked solution)
5Bearing from Green can "1": 321 °T
Distance: 1.02 nm
No. 242005 (worked solution)
6Bearing from Gannet Rock daybeacon: 237 °T
Distance: 2.24 nm
No. 242006 (worked solution)
7Bearing from Green can "3": 325 °T
Distance: 1.01 nm
No. 242007 (worked solution)
8Bearing from Bell buoy "HS": 192 °T
Distance: 4.20 nm
No. 242008 (worked solution)