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Worksheet 281 · Skill 4

Two-bearing fix

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  1. At 0930 you take two bearings with a hand-bearing compass: Heron Point Light bears 180°M and Gannet Rock daybeacon bears 108°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  

  2. At 1645 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 108°M and Mill stack bears 178°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  

  3. At 1410 you take two bearings with a hand-bearing compass: Mill stack bears 199°M and Kittle water tank bears 145°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 1045 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 089°M and Mill stack bears 165°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 1540 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 105°M and Mill stack bears 160°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 1325 you take two bearings with a hand-bearing compass: Heron Point Light bears 214°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 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 1325 you take two bearings with a hand-bearing compass: Heron Point Light bears 273°M and Gannet Rock daybeacon bears 032°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 Kittle water tank to the fix, and the distance.

    Tolerance: 2° and 0.15 nm (or 4 % of the distance).

    Bearing from Kittle water tank: ________ °T   Distance: ________ nm  

  8. At 1650 you take two bearings with a hand-bearing compass: Kittle water tank bears 150°M and Heron Point Light bears 270°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  

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 Westfield church spire: 087 °T
Distance: 1.47 nm
No. 281001 (worked solution)
2Bearing from Green can "3": 266 °T
Distance: 0.82 nm
No. 281002 (worked solution)
3Bearing from Green can "3": 065 °T
Distance: 1.08 nm
No. 281003 (worked solution)
4Bearing from Green can "3": 220 °T
Distance: 2.06 nm
No. 281004 (worked solution)
5Bearing from Red nun "2": 307 °T
Distance: 1.38 nm
No. 281005 (worked solution)
6Bearing from Green can "3": 319 °T
Distance: 2.13 nm
No. 281006 (worked solution)
7Bearing from Kittle water tank: 304 °T
Distance: 2.57 nm
No. 281007 (worked solution)
8Bearing from Gannet Rock daybeacon: 181 °T
Distance: 1.12 nm
No. 281008 (worked solution)