by Loxodrome

(Degrees: N, E = plus; S, W = minus)
deg min
deg min
  Course (°) Velocity (kt)
  Time (h) Time (min)

RESULT:    New Position
  not normalized:

DISPLACEMENT - Explanation

This program calculates the displacement of a ship from an initial position, given its course, velocity and time. It is assumed that the ship follows the rhumb-line (= Loxodrome) to its final position. - The model for the earth is a sphere with 21600 nautical miles perimeter.
Results were partly checked against the rhumb-solver in:
for distances up to 20.000 nautical miles.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the license or any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ( for more details.
If errors are encountered, kindly send a note to Author: Heiner Müller-Krumbhaar   - Last update 4.may 2023.