Dividers: drag from one point to another on the chart

Start a drag on a charted object or buoy and it snaps to it. The readout gives the true bearing (and magnetic, 7°W) from where you start to where you are, and the distance in nautical miles.

Skill 3 · Dead reckoningProblem 800005

Two legs from a 1400 fix: where is the 1425 DR?

At 1400 you fix your position 311°T, 1.6 nm from Kittle water tank. You steer 055°T at 4.8 kn until 1415, then 016°T at 9.7 kn until 1425.

Give the 1425 DR position as the true bearing FROM Gannet Rock daybeacon to the DR, and the distance. Courses are true and speeds are through the water; dead reckoning ignores current and leeway.

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

Given
1400 fix	311°T, 1.6 nm from Kittle water tank
Leg 1	055°T, 4.8 kn, 1400 to 1415
Leg 2	016°T, 9.7 kn, 1415 to 1425

Free skill. Plot Pass $1.95/month or $19.50/year · Free during preview: all eight skills, worksheets with answer keys, a 5,000-attempt Plot Log and CSV.