No, two ships define a line, one which rotates through time. (The vectors are immaterial, as they can be represented as either closing or opening range by a fractional amount, and the result can be expressed as a distance and two facings at all times.)
Three ships forces a plane; said plane may wobble, etc, by the 3D movements over time, but at any given time, it's still three points, and three facings, and three vectors.
At 4 ships, they will no longer describe a single plane through time... and thus 3D space is requisite.
Three ships forces a plane; said plane may wobble, etc, by the 3D movements over time, but at any given time, it's still three points, and three facings, and three vectors.
At 4 ships, they will no longer describe a single plane through time... and thus 3D space is requisite.
