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The Racing Rules of Sailing (often abbreviated to RRS) govern the conduct of yacht racing, windsurfing, kitesurfing, model boat racing, dinghy racing and virtually any other form of racing around a course with more than one vessel while powered by the wind. A new revision is published every four years (after the Olympic Games) by the International Sailing Federation (ISAF), the sport's world governing body. The current edition (2013–2016) can be downloaded at the International Sailing Federation.〔http://www.sailing.org/tools/documents/ISAFRRS20132016Final-%5B13376%5D.pdf〕 1997 saw the most dramatic simplification to the Racing Rules of Sailing since the 1940s. They are based on four main right of way rules: (2, Section A ) # Boats on a port tack shall keep clear of boats on starboard tack (Rule 10). # When boats are on the same tack and overlapped, the boat to windward (the boat closest to the wind) shall keep clear of a leeward boat (Rule 11). # When boats are on the same tack and not overlapped, the boat that is astern shall keep clear of the boat ahead. (Rule 12). # When a boat is tacking (changing tack) it shall keep clear of boats that are not tacking (Rule 13). Four rules with general limitations: (2, Section B ) # Even if you have right-of-way, it is your duty to avoid a collision, once it becomes apparent that the other boat is not keeping clear (Rule 14). # If you acquire right of way, you must initially give the other boat room to keep clear, unless you get right of way because of the other boat's actions. (Rule 15) # A boat that changes course, even if it has the right-of-way, shall do so in a manner that gives the burdened boat a chance to "keep clear" (Rule 16). # If you catch up with another boat and you want to pass it to leeward, you may not sail above your proper course ''i.e.'' you shall not luff higher than you would have done if that boat wasn't there (Rule 17) Three rules about marks and obstructions (2, Section C ) and Three other rules about starting errors, taking penalties, moving astern and when you are capsized or anchored or run aground and finally about interfering with another boat. In total there are 91 rules but (since the major simplification in 1997) only 15 rules govern what boats do when they meet on the water (part 2 rules). It is not necessary to know all of the rules to successfully compete in a dinghy race, but a knowledge of the basics is recommended. Sailboat racing is a self-regulated sport. As stated by the Racing Rules of Sailing, "Competitors in the sport of sailing are governed by a body of rules that they are expected to follow and enforce. A fundamental principle of sportsmanship is that when competitors break a rule they will promptly take a penalty, which may be to retire.".〔''See'' (Official website, International Sailing Federation. )〕 Depending on the nature of the infraction, the penalty may be either: (1) performing a turn consisting of one tack and one gybe or (2) performing two turns consisting of two tacks and two gybes (except for windsurfing). For most rules infractions, a competitor may be absolved from disqualification from the race by taking such a penalty. However, if the infraction caused injury or serious damage, or produced a significant advantage in the race or series, the penalty shall be to retire. If a competitor fails to take penalty turn(s) they may be disqualified after a hearing by the Protest Committee. The aforementioned principles do not apply to match racing (like the America's Cup) where on-the-water umpires impose penalties immediately after an infraction occurs. == Race signals == Sail races are governed with flags and sound signals to indicate flag changes. The flags used are taken from the International maritime signal flag set. During a race and for any signal concerning the race, these flags are defined in the ISAF Racing Rules of Sailing but the signal can be modified by the Sailing Instructions. The raising (hoisting) or removing of a visual signal is accompanied by the emission of a sound signal to draw attention to the new signal. The type of the sound signal (one short sound, two short sounds, one long sound, etc.) is described by the rule according to the type of signal. The usual meanings of these flags are as follows: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「racing rules of sailing」の詳細全文を読む スポンサード リンク
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