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Worksheet 124 · Skill 4

Two-bearing fix

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  1. At 1400 you take two bearings with a hand-bearing compass: Mill stack bears 177°M and Westfield church spire bears 260°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 0705 you take two bearings with a hand-bearing compass: Heron Point Light bears 194°M and Gannet Rock daybeacon bears 124°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  

  3. At 1505 you take two bearings with a hand-bearing compass: Westfield church spire bears 313°M and Gannet Rock daybeacon bears 080°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  

  4. At 0945 you take two bearings with a hand-bearing compass: Mill stack bears 176°M and Westfield church spire bears 286°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 1210 you take two bearings with a hand-bearing compass: Mill stack bears 175°M and Westfield church spire bears 260°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 1405 you take two bearings with a hand-bearing compass: Westfield church spire bears 286°M and Heron Point Light bears 200°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 1220 you take two bearings with a hand-bearing compass: Heron Point Light bears 190°M and Gannet Rock daybeacon bears 099°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  

  8. At 1435 you take two bearings with a hand-bearing compass: Heron Point Light bears 201°M and Westfield church spire bears 286°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  

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": 326 °T
Distance: 2.21 nm
No. 124001 (worked solution)
2Bearing from Westfield church spire: 053 °T
Distance: 3.20 nm
No. 124002 (worked solution)
3Bearing from Green can "1": 160 °T
Distance: 1.01 nm
No. 124003 (worked solution)
4Bearing from Green can "3": 256 °T
Distance: 0.98 nm
No. 124004 (worked solution)
5Bearing from Green can "3": 321 °T
Distance: 2.29 nm
No. 124005 (worked solution)
6Bearing from Green can "1": 325 °T
Distance: 1.94 nm
No. 124006 (worked solution)
7Bearing from Green can "1": 297 °T
Distance: 1.88 nm
No. 124007 (worked solution)
8Bearing from Green can "1": 326 °T
Distance: 1.90 nm
No. 124008 (worked solution)