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Worksheet 333 · Skill 4

Two-bearing fix

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  1. At 1540 you take two bearings with a hand-bearing compass: Heron Point Light bears 244°M and Westfield church spire bears 305°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  

  2. At 1140 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 122°M and Heron Point Light bears 233°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 0945 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 108°M and Heron Point Light bears 187°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  

  4. At 1020 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 055°M and Westfield church spire bears 300°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  

  5. At 1540 you take two bearings with a hand-bearing compass: Heron Point Light bears 266°M and Mill stack bears 211°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 1605 you take two bearings with a hand-bearing compass: Westfield church spire bears 301°M and Mill stack 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 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 1540 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 254°M and Kittle water tank bears 187°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 0955 you take two bearings with a hand-bearing compass: Mill stack bears 204°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 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 "3": 227 °T
Distance: 2.31 nm
No. 333001 (worked solution)
2Bearing from Tern Island tower: 242 °T
Distance: 1.88 nm
No. 333002 (worked solution)
3Bearing from Westfield church spire: 090 °T
Distance: 1.90 nm
No. 333003 (worked solution)
4Bearing from Mill stack: 041 °T
Distance: 2.67 nm
No. 333004 (worked solution)
5Bearing from Green can "3": 152 °T
Distance: 2.24 nm
No. 333005 (worked solution)
6Bearing from Green can "3": 155 °T
Distance: 2.79 nm
No. 333006 (worked solution)
7Bearing from Bell buoy "HS": 194 °T
Distance: 3.30 nm
No. 333007 (worked solution)
8Bearing from Green can "3": 081 °T
Distance: 1.40 nm
No. 333008 (worked solution)