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approach rhumb-line sailing calculations from a very traditional point of view, which includes calculations of mid-latitudes or meridional parts|an obsolete and unnecessary approach given modern computing power. However, the primary de ciency is the lack of a closed-form latitude formula that takes into account the Earth’s oblateness. 1
Rhumbline network. Windrose network -16 vertex on each Portolan. Image of Petrus Vesconte. A rhumbline network (or windrose network) is a navigational aid consisting in multiple lines in a web-like grid drawn on portolan charts (and other early maps ). These nautical charts were used in the medieval age and age of exploration in marine navigation .
operational use. Navy ships are subject to changes in orders en route, and are often involved in maneuvers. The software was therefore required to handle an arbitrary number of changes to course and speed. Even on an uncomplicated port-to-port voyage, the great-circle route would usually be approximated by a series of rhumb lines.
The rhumb line connecting any two points of the great circle on the same side of the equator is a chord of the curve. If the two points are on op-posite sides of the equator, the direction of curvature of the great circle relative to the rhumb line changes at the equa-tor. The rhumb line and great circle may intersect each
19 maj 2020 · This is the third video in a series covering the basics of GNav for ATPL students. This video tries to explain the difference between Great Circles and Rhum...
Longitude, and Rhumb Line - Understand the concept of Projections and the main projections used in Navigation - Know the advantages and disadvantages of the Mercator and Gnomonic Projections - Understand the difference between Great Circle Routes and Rhumb Lines - Understand the use of a Nautical Chart and the main concepts associated to ...
Rhumb-Line Sailing by Computation. Morgaś, Wacław. ; Kopacz, Zdzisław. Proposals of algorithms for solving Navigation faculty's problems regarding navigation along rhumb line (loxodrome), for officer trainees and civil students of Faculty of Navigation and Naval Weapons and for deck seamen on operational level, are presented in this paper.
