Plotroom

PREVIEWFree during preview: checkout has not opened, so skills 5 to 8, worksheets and CSV cost nothing yet. Price when it opens: Plot Pass $1.95/month or $19.50/year.

Worksheet 677 · Skill 4

Two-bearing fix

Next sheet

Plot Pass worksheet. Plot Pass $1.95/month or $19.50/year · Free during preview. Plotroom · cedarpointmarina.net · invented chart, not for navigation.

  1. At 1125 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 274°M and Kittle water tank bears 182°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  

  2. At 0840 you take two bearings with a hand-bearing compass: Mill stack bears 190°M and Gannet Rock daybeacon bears 072°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 0835 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 279°M and Kittle water tank bears 184°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  

  4. At 0820 you take two bearings with a hand-bearing compass: Mill stack bears 211°M and Heron Point Light bears 261°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 1755 you take two bearings with a hand-bearing compass: Heron Point Light bears 269°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 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  

  6. At 1645 you take two bearings with a hand-bearing compass: Heron Point Light bears 222°M and Mill stack bears 153°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  

  7. At 1530 you take two bearings with a hand-bearing compass: Heron Point Light bears 269°M and Gannet Rock daybeacon bears 033°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 0735 you take two bearings with a hand-bearing compass: Westfield church spire bears 239°M and Mill stack bears 159°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 Tern Island tower: 130 °T
Distance: 3.82 nm
No. 677001 (worked solution)
2Bearing from Red nun "2": 141 °T
Distance: 2.09 nm
No. 677002 (worked solution)
3Bearing from Bell buoy "HS": 194 °T
Distance: 3.96 nm
No. 677003 (worked solution)
4Bearing from Green can "3": 139 °T
Distance: 1.96 nm
No. 677004 (worked solution)
5Bearing from Green can "1": 205 °T
Distance: 1.36 nm
No. 677005 (worked solution)
6Bearing from Red nun "2": 259 °T
Distance: 1.17 nm
No. 677006 (worked solution)
7Bearing from Kittle water tank: 315 °T
Distance: 2.73 nm
No. 677007 (worked solution)
8Bearing from Red nun "2": 322 °T
Distance: 3.75 nm
No. 677008 (worked solution)