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Worksheet 553 · Skill 4

Two-bearing fix

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  1. At 1415 you take two bearings with a hand-bearing compass: Westfield church spire bears 316°M and Gannet Rock daybeacon bears 085°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 1400 you take two bearings with a hand-bearing compass: Westfield church spire bears 278°M and Heron Point Light bears 219°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 0800 you take two bearings with a hand-bearing compass: Mill stack bears 170°M and Westfield church spire bears 284°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 1355 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 296°M and Kittle water tank 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 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 1555 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 288°M and Kittle water tank bears 219°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  

  6. At 1600 you take two bearings with a hand-bearing compass: Heron Point Light bears 279°M and Mill stack bears 166°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 1745 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 293°M and Kittle water tank bears 204°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  

  8. At 0820 you take two bearings with a hand-bearing compass: Heron Point Light bears 191°M and Westfield church spire bears 257°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: 061 °T
Distance: 1.56 nm
No. 553001 (worked solution)
2Bearing from Red nun "2": 347 °T
Distance: 1.37 nm
No. 553002 (worked solution)
3Bearing from Red nun "2": 347 °T
Distance: 0.92 nm
No. 553003 (worked solution)
4Bearing from Bell buoy "HS": 179 °T
Distance: 4.58 nm
No. 553004 (worked solution)
5Bearing from Bell buoy "HS": 171 °T
Distance: 4.43 nm
No. 553005 (worked solution)
6Bearing from Green can "1": 142 °T
Distance: 1.92 nm
No. 553006 (worked solution)
7Bearing from Bell buoy "HS": 181 °T
Distance: 4.41 nm
No. 553007 (worked solution)
8Bearing from Red nun "2": 316 °T
Distance: 3.04 nm
No. 553008 (worked solution)