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.

Plot Log

Worksheet 304 · 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 0820 you take two bearings with a hand-bearing compass: Westfield church spire bears 258°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 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  

  2. At 1040 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 110°M and Heron Point Light bears 228°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 1350 you take two bearings with a hand-bearing compass: Mill stack bears 171°M and Westfield church spire bears 263°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 1710 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 030°M and Heron Point Light bears 278°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  

  5. At 0945 you take two bearings with a hand-bearing compass: Kittle water tank bears 200°M and Gannet Rock daybeacon bears 275°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 0840 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 061°M and Westfield church spire bears 308°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 Mill stack to the fix, and the distance.

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

    Bearing from Mill stack: ________ °T   Distance: ________ nm  

  7. At 0815 you take two bearings with a hand-bearing compass: Gannet Rock daybeacon bears 117°M and Heron Point Light bears 205°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  

  8. At 1220 you take two bearings with a hand-bearing compass: Heron Point Light bears 232°M and Westfield church spire bears 314°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 Red nun "2": 332 °T
Distance: 2.76 nm
No. 304001 (worked solution)
2Bearing from Green can "3": 278 °T
Distance: 1.06 nm
No. 304002 (worked solution)
3Bearing from Green can "3": 308 °T
Distance: 2.33 nm
No. 304003 (worked solution)
4Bearing from Kittle water tank: 291 °T
Distance: 2.46 nm
No. 304004 (worked solution)
5Bearing from Bell buoy "HS": 181 °T
Distance: 3.73 nm
No. 304005 (worked solution)
6Bearing from Mill stack: 020 °T
Distance: 1.57 nm
No. 304006 (worked solution)
7Bearing from Red nun "2": 334 °T
Distance: 2.38 nm
No. 304007 (worked solution)
8Bearing from Red nun "2": 236 °T
Distance: 1.55 nm
No. 304008 (worked solution)