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 834 · 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 1050 you take two bearings with a hand-bearing compass: Mill stack bears 204°M and Heron Point Light bears 254°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 1230 you take two bearings with a hand-bearing compass: Mill stack bears 207°M and Gannet Rock daybeacon bears 093°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 0830 you take two bearings with a hand-bearing compass: Heron Point Light bears 278°M and Gannet Rock daybeacon bears 010°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  

  4. At 1435 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 116°M and Westfield church spire bears 239°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  

  5. At 1615 you take two bearings with a hand-bearing compass: Heron Point Light bears 181°M and Westfield church spire bears 287°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 1505 you take two bearings with a hand-bearing compass: Heron Point Light bears 187°M and Gannet Rock daybeacon bears 110°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  

  7. At 0900 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 249°M and Kittle water tank 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 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  

  8. At 1630 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 089°M and Heron Point Light bears 212°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": 131 °T
Distance: 1.36 nm
No. 834001 (worked solution)
2Bearing from Green can "3": 132 °T
Distance: 1.59 nm
No. 834002 (worked solution)
3Bearing from Kittle water tank: 300 °T
Distance: 1.75 nm
No. 834003 (worked solution)
4Bearing from Red nun "2": 313 °T
Distance: 3.79 nm
No. 834004 (worked solution)
5Bearing from Green can "1": 309 °T
Distance: 2.74 nm
No. 834005 (worked solution)
6Bearing from Westfield church spire: 082 °T
Distance: 1.92 nm
No. 834006 (worked solution)
7Bearing from Bell buoy "HS": 197 °T
Distance: 3.26 nm
No. 834007 (worked solution)
8Bearing from Green can "1": 255 °T
Distance: 1.35 nm
No. 834008 (worked solution)