Revision as of 22:54, 2 January 2025 edit JeffSpaceman (talk \| contribs) Extended confirmed users, Pending changes reviewers, Rollbackers 27,908 edits m Reverted 1 edit by 82.16.165.252 (talk) to last revision by HopsonRoad Tags: Twinkle Undo ← Previous edit		Revision as of 14:41, 5 January 2025 edit undo 83.59.7.136 (talk) minor typo correction Next edit →
Line 1: {{Short description\|none}} <!-- "none" is a legitimate description when the title is already adequate; see [[WP:SDNONE]] --> {{Main\|Sail}} [[File:Points of sail--close-hauled (right) and down wind (left).jpg\|thumb\|right\|300px\|Aerodynamic force components for two points of sail. <br />''Left-hand boat'': Down wind with stalled ~~airfow—~~airflow— predominant ''drag'' component propels the boat with little heeling moment. <br />''Right-hand boat'': Up wind (close-hauled) with attached airflow—predominant ''lift'' component both propels the boat and contributes to heel.]] [[File:Points of sail--English.jpg\|thumb\|right\|300px\|Points of sail (and ''predominant sail force component'' for a displacement sailboat).<br />A. Luffing (''no propulsive force'') — 0-30°<br />B. Close-Hauled (''lift'')— 30-50°<br />C. Beam Reach (''lift'')— 90°<br />D. Broad Reach (''lift–drag'')— ~135°<br />E. Running (''drag'')— 180°<br />True wind ('''V<sub>T</sub>''') is the same everywhere in the diagram, whereas boat velocity ('''V<sub>B</sub>''') and apparent wind ('''V<sub>A</sub>''') vary with point of sail.]]

Forces on sails: Difference between revisions