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Worksheet 45 · Skill 4

Two-bearing fix

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  1. At 1235 you take two bearings with a hand-bearing compass: Mill stack bears 177°M and Gannet Rock daybeacon bears 120°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 1535 you take two bearings with a hand-bearing compass: Mill stack bears 201°M and Heron Point Light bears 274°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 1420 you take two bearings with a hand-bearing compass: Mill stack bears 181°M and Gannet Rock daybeacon bears 119°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  

  4. At 1555 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 126°M and Heron Point Light bears 197°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  

  5. At 1225 you take two bearings with a hand-bearing compass: Westfield church spire bears 246°M and Heron Point Light 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 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 1750 you take two bearings with a hand-bearing compass: Westfield church spire bears 253°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 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  

  7. At 1345 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 085°M and Mill stack bears 185°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 1605 you take two bearings with a hand-bearing compass: Westfield church spire bears 285°M and Mill stack bears 162°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 Green can "3": 314 °T
Distance: 1.52 nm
No. 45001 (worked solution)
2Bearing from Red nun "2": 137 °T
Distance: 2.45 nm
No. 45002 (worked solution)
3Bearing from Green can "3": 320 °T
Distance: 1.03 nm
No. 45003 (worked solution)
4Bearing from Westfield church spire: 054 °T
Distance: 3.53 nm
No. 45004 (worked solution)
5Bearing from Red nun "2": 318 °T
Distance: 3.48 nm
No. 45005 (worked solution)
6Bearing from Tern Island tower: 318 °T
Distance: 2.07 nm
No. 45006 (worked solution)
7Bearing from Red nun "2": 126 °T
Distance: 1.35 nm
No. 45007 (worked solution)
8Bearing from Red nun "2": 314 °T
Distance: 1.34 nm
No. 45008 (worked solution)