Ship navigation in heavy weather

Realnost upravljanja brodom je veoma različita od teorije. Ne postoje knjige koje mogu obuhvatiti elemente vremenskih uvjeta i obilježja stanja mora, odnosno da praksu i teoriju spoje u jedno. Od prestanka upotrebe jedrenjaka, strojevi i pomagala u navigaciji se neprestano usavršavaju i pružaju dodatna sredstva kao pomoć zapovjedniku, peljaru i drugima, odgovornima u navigaciji velikih i malih brodova na motorni pogon. Teorija manevriranja može idealno odgovarati za neku luku u određeno vrijeme, ali mnoge varijable koje su uključene mogu isti manevar učiniti potpuno neodgovarajućim u drugom vremenu. Rukovoditelji broda stoga moraju biti upoznati sa sposobnostima broda, dok u isto vrijeme moraju biti fleksibilni u upotrebi resursa protiv jakih struja ili jakih vjetrova. Cilj ovog rada je pružiti viziju kako različite sile djeluju na brod, odnosno kako osoba koja upravlja brodom procjenjuje utjecaje raznih sila koje djeluju na brod promatrajući gibanje broda.The reality of handling the ship is a world apart from the theory. No publication can encompass the elements of weather and features of water conditions to make the practice and theory one and the same. Since the demise of sail, machinery and maneuvering aids have continued to improve and provide additional resources to the benefit of Masters, Pilots and others, charged with the task of handling both large and small power-driven vessels. The theory of a maneuver may be ideally suited for a certain port at a certain time, but the many variables involved may make the same maneuver totally unsuitable at another time. Ship handlers and controllers must therefore be familiar with the capabilities of the ship, while at the same time be flexible in the use of resources against stronger currents or increased wind conditions. The objective of this article is to provide a vision of how different forces effects on the ship, and how the ship handler estimates the effects of the various forces acting upon the ship by observing the ship's movements