Difference between Rhumb Line and West By South

RHUMB LINE vs WEST BY SOUTH: NOUN

A line that cuts all meridians at the same angle.
The path of a ship that maintains a fixed compass direction, shown on a map as a line crossing all meridians at the same angle.
A line on a sphere that cuts all meridians at the same angle; the path taken by a ship or plane that maintains a constant compass direction

The compass point halfway between west and west-southwest, specifically 258.75°
The direction or point on the mariner's compass halfway between due west and west-southwest, or 101°15′ west of due north.
The compass point that is one point south of due west

Southeasterly, Cape horn, Northeasterly, Northwesterly, Southwesterly, Abeam, Leeward, Windward, Northerly, Easterly, Westerly, Southerly, Upwind, Loxodrome, Rhumb

Agouti, Hinge, Africa, Afghanistan, Chad, Declination, Range, Windhoek, Guppy, Namibia, Ssw, Wsw, Wbs, Sbw, Southwest

Southeasterly, Cape horn, Northeasterly, Northwesterly, Southwesterly, Abeam, Leeward, Windward, Northerly, Easterly, Westerly, Southerly, Upwind, Loxodrome, Rhumb

Atlantic, Algonquin, Algonquian, Jamaica, Bangalore, Range, Hinge, Chad, Agouti, Africa, Afghanistan, Namibia, Wsw, Ssw, Southwest

Much of the fleet chose to sail high along the CT shoreline with Young American choosing a route more towards the rhumb line.
The fundamental elements such as earth ellipsoid, geoid, geocentric and geodetic latitudes, rhumb line, and great circle are dealt with in detail.
On the rhumb line from the Royal Sovereign to Dungeness there are no dangers.
Define the following terms: datum, developable surface, secant, azimuth, rhumb line, and zenithal.
Rhumb Line cases are shown, one in each hemisphere.