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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)
Choose your calculation: Rhumb line calculation: Departure position (latitude, longitude) + Course and Distance, to compute Arrival position; Departure position + Arrival position, to compute Course and Distance; Path of constant course between Departure position and Arrival position. Great Circle calculation
Great circle navigation - sailing calculator software: distance-bearing between two points - formulas - rhumb line - excel spreadsheet program - free download.
Calculation of a distance on loxodrome (rhumb line) and course angle (azimuth) between two points with a given geographical coordinates.
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.
The formulas for determining a ship’s dead-reckoned position, given an initial known location, the vessel’s course and speed, and the time elapsed, are referred to as the sailing formulas. These...
Online rhumb line calculations using the RhumbSolve utility. Rhumb Line calculation: Inverse: lat1 lon1 lat2 lon2. → azi12 s12. Direct: lat1 lon1 azi12 s12. → lat2 lon2. Input (ex. « 40.6 -73.8 49°01'N 2°33'E » [inverse], « 40d38'23"N 073d46'44"W 53d30' 5850e3 » [direct]): . Output format: Decimal degrees. Degrees minutes seconds.
