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Worksheet 88 · Skill 4

Two-bearing fix

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  1. At 0930 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 095°M and Heron Point Light bears 177°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 1625 you take two bearings with a hand-bearing compass: Westfield church spire bears 308°M and Heron Point Light bears 253°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 1600 you take two bearings with a hand-bearing compass: Heron Point Light bears 272°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  

  4. At 0915 you take two bearings with a hand-bearing compass: Heron Point Light bears 250°M and Kittle water tank bears 166°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  

  5. At 1335 you take two bearings with a hand-bearing compass: Kittle water tank bears 184°M and Gannet Rock daybeacon bears 237°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 1040 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 089°M and Kittle water tank bears 146°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 1735 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 079°M and Westfield church spire bears 323°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 Heron Point Light to the fix, and the distance.

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

    Bearing from Heron Point Light: ________ °T   Distance: ________ nm  

  8. At 1640 you take two bearings with a hand-bearing compass: Kittle water tank bears 151°M and Westfield church spire bears 280°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  

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": 279 °T
Distance: 2.13 nm
No. 88001 (worked solution)
2Bearing from Red nun "2": 193 °T
Distance: 1.07 nm
No. 88002 (worked solution)
3Bearing from Green can "3": 162 °T
Distance: 2.64 nm
No. 88003 (worked solution)
4Bearing from Gannet Rock daybeacon: 348 °T
Distance: 1.54 nm
No. 88004 (worked solution)
5Bearing from Bell buoy "HS": 200 °T
Distance: 2.98 nm
No. 88005 (worked solution)
6Bearing from Green can "3": 113 °T
Distance: 2.64 nm
No. 88006 (worked solution)
7Bearing from Heron Point Light: 086 °T
Distance: 1.31 nm
No. 88007 (worked solution)
8Bearing from Tern Island tower: 169 °T
Distance: 1.53 nm
No. 88008 (worked solution)