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Worksheet 852 · Skill 4

Two-bearing fix

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  1. At 1415 you take two bearings with a hand-bearing compass: Mill stack bears 167°M and Gannet Rock daybeacon bears 104°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  

  2. At 1200 you take two bearings with a hand-bearing compass: Heron Point Light bears 260°M and Kittle water tank bears 147°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  

  3. At 1515 you take two bearings with a hand-bearing compass: Westfield church spire bears 280°M and Mill stack bears 190°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 0910 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 104°M and Mill stack bears 159°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  

  5. At 1200 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 267°M and Kittle water tank bears 193°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 1425 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 242°M and Kittle water tank bears 188°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  

  7. At 0805 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 100°M and Mill stack bears 217°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 1610 you take two bearings with a hand-bearing compass: Kittle water tank bears 144°M and Mill stack 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 "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  

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 "1": 010 °T
Distance: 1.26 nm
No. 852001 (worked solution)
2Bearing from Gannet Rock daybeacon: 264 °T
Distance: 1.03 nm
No. 852002 (worked solution)
3Bearing from Red nun "2": 053 °T
Distance: 1.82 nm
No. 852003 (worked solution)
4Bearing from Red nun "2": 302 °T
Distance: 1.37 nm
No. 852004 (worked solution)
5Bearing from Bell buoy "HS": 187 °T
Distance: 3.52 nm
No. 852005 (worked solution)
6Bearing from Bell buoy "HS": 195 °T
Distance: 2.86 nm
No. 852006 (worked solution)
7Bearing from Green can "3": 112 °T
Distance: 2.24 nm
No. 852007 (worked solution)
8Bearing from Green can "3": 101 °T
Distance: 1.58 nm
No. 852008 (worked solution)