3-4
VTD (Speed of the destination component)
VTD (An acronym of "Velocity Toward Destination)
This in an index that shows how fast the boat is approaching toward the destination in the
unit of knot when it is navigation at a given bearing angle and speed.
VEAR(Speed of the COG component)
VEAR(An acronym of "Velocity Along Route")
This in an index that shows how fast the vessel is approaching along the planned route in
the unit of knot when it is navigating at a given course and speed.
CMG(Average bearing)
CMG(An acronym of "Course Made Good")
The bearing angle to the current position when viewed from the starting point.
Memo
VEAR
VTD = V cos a°
VEAR = V cos b°
CMG = c°