Sailing SV Delosvideo
Weather Routing With Pilot Charts- SV Delos Sailing
17 de junio de 2016 · 12 min · 101K vistas · Andaman Islands
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The crew of SV Delos uses historical pilot charts to plan a passage from the Andaman Islands to Madagascar after a six-week delay in Thailand forced a late-season departure.3:58 Because the Northern Indian Ocean monsoon shifts from northeasterly to southwesterly winds between March and May, a direct route toward Sri Lanka and the Maldives would require beating into headwinds and adverse currents.3:33 By analyzing wind roses and current vectors on monthly pilot charts, the crew identifies a southern alternative that involves sailing south along the coast of Sumatra to reach the consistent southeasterly trade winds.7:03 This route requires navigating toward Cocos Keeling to intercept favorable winds and currents before turning west toward Chagos.7:15 The crew also evaluates tropical cyclone frequency data, noting that while storm risk increases in the Northern Hemisphere during May, it decreases significantly in the Southern Hemisphere.10:13 Using historical weather data allows for route adjustments that avoid unfavorable wind angles and seasonal storm patterns.
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