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Most boats have a positive PHRF rating, but some very fast boats have a negative PHRF rating. If Boat A has a PHRF rating of 15 and Boat B has a rating of 30 and they compete on a 1 mile course, Boat A should finish approximately 15 seconds in front of Boat B. Results are adjusted for handicap by the race committee after all competitors have ...
The measurements and penalties were used to compute the handicap number, called an IOR rating, in feet. The higher the rating, the faster the boat was deemed to be able to sail. A typical IOR 40 footer (a one tonner) rated 30.55 feet. The IOR rule encouraged wide short boats with limited stability.
The plate frequently contains the names of the machine and its manufacturer, so the rating plate is often called a name plate (hence the term "nameplate capacity" for a generator), although many devices carry separate nameplates and rating plates. [1] For an electric machine, the power rating is the number on its rating plate and corresponds to ...
Whether using a displacement or planing vessel, one should select an appropriate power level; too much power is wasteful (adding unnecessary weight), and may often be dangerous. [22] Boats built in the US have Coast Guard Rating Plates, which specify the maximum recommended engine powers for the hulls. In the united kingdom, boats have CE ...
Each class of boat is assigned a "Portsmouth Number", with fast boats having low numbers and slow ones high numbers—so, for example, in the case of two dinghies, a 49er might have a RYA-PY of 697 while a Mirror has a RYA-PY of 1390 (these are the actual RYA Portsmouth numbers for 2018, but note that adjustments are made each year).
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The Recreational Craft Directive, Directive 2013/53/EU, originally Directive 94/25/EC on recreational craft [1] amended by Directive 2003/44/EC, is a European Union directive which sets out minimum technical, safety and environmental standards for boats, personal watercraft, marine engines and components in Europe.
International Rating Certificate (IRC) is a system of handicapping sailboats and yachts for the purpose of racing. It is managed by the Royal Ocean Racing Club (RORC) in the United Kingdom through their dedicated Rating Office, [ 1 ] and the Union Nationale pour la Course au Large (UNCL) in France.