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Short distance sailing is a term which is applied to sailing along a rhumb-line for distances less than 600 nautical miles. From the formulas derived above, the following are used extensively in short distance sailing: To Calculate Departure when the course is not known: dep.= d.long cos(mean lat)
Using two different examples, this video shows how to calculate the course and distance between two positions; and how to calculate the position arrived if d...
Great circle navigation - sailing calculator software: distance-bearing between two points - formulas - rhumb line - excel spreadsheet program - free download.
Celestial navigation course for beginners. Voyage planning/passage planning tool. Single rhumb line and great circle calculations on an ellipsoid.
Great Circle calculation. Computes the shortest path between Departure position and Arrival position. Celestial navigation course for beginners. Voyage planning/passage planning tool. Single rhumb line and great circle calculations on an ellipsoid.
The simplest way for you to understand the concept of a Great Circle route is to take a piec e of string to a globe. If you put one end at the origin and the other at the destination and held it straight, paral lel with the equator, you will get one distance known as the ‘ Rhumb Line ’.
Rhumb Line Sailing: Calculation. First loxodromic problem: Departure position P1 (φ1, λ1) to the arrival position of P2 (φ2, λ2). Unknown are the navigation course (Kl) and loxodromic distance (Dl). Δλ = (λ2 – λ1) – relative coordinate, the difference of longitudes. ΔφM = (φM2 – φM1) – relative coordinate, the difference of Mercator’s widths.
