What does Phrf stand for?
Performance Handicap Racing Fleet
PHRF (Performance Handicap Racing Fleet) is a system used to handicap racer/cruiser type of sailboats by observed racing performance. Any measurements taken (spinnaker poles, sails, etc.) are used only to identify the boat and to quantify any differences or modifications from what is considered standard.
What is my boats PHRF rating?
In PHRF, boats are assigned ratings in seconds per mile. Your rating is the number of seconds per mile your boat is supposedly slower than a theoretical boat which rates 0. Most boats you are likely to sail on rate somewhere in the range of about 50 to 250.
What is a PHRF certificate?
A. Performance Handicap Racing Fleet (PHRF) ratings are based on the speed potential of the boat, determined as far as possible on observations of previous racing experiences. It is the intent of PHRF handicapping that any well equipped, well maintained, and well sailed boat has a good chance of winning.
How do I get a PHRF certificate?
How To Join In Five Steps
- Join An SCYA Affiliated Yacht Club. Here’s a list of SCYA-affiliated yacht clubs.
- Get a Sail Number from SCYA and Put it On Your Racing Sails.
- Gather the Necessary Boat Measurements.
- Fill Out and Submit the New Member Application.
- Pay the Membership Fee of $90.
How is hull speed calculated?
Hull Speed Formula Theoretical displacement hull speed is calculated by the formula: velocity in knots = 1.35 x the square root of the waterline length in feet.
What is the PHRF rating of a J24?
171 seconds per mile
How are PHRF ratings established? For each boat type, the Lake Tahoe PHRF committee establishes a rating in seconds per mile. For example, a J24 might have a rating of 171 seconds per mile while a faster Moore 24 might have a rating of 156 seconds per mile.
How is PHRF corrected time calculated?
Time on Time (TOT) also uses our PHRF ratings but calculates time corrections as follows: Corrected time = Elapsed time X 650/(550 + PHRF). For example, if your PHRF rating was 120 and it took you 63.5 minutes to finish the race, your corrected time would be 63.5 X 650/670 = 61.6 minutes.
What are boat polars?
A polar diagram describes how fast a sailing boat may go at different wind speeds (TWS) and in different angles to the wind (TWA). Every type of boat has its polar diagram (or VPP, velocity prediction program), computed from hull shape, weight, rigging and a sail setup.
What does IRC stand for in sailing?
International Rating Certificate
IRC stands for International Rating Certificate. Originally, “IR” was an abbreviation for International Rule.
How is sailing handicap calculated?
The handicap number assigned to a class of yachts is based on the yacht’s speed relative to a theoretical yacht with a rating of 0. A yacht’s handicap, or rating, is the number of seconds per mile traveled that the yacht in question should be behind the theoretical yacht.
How do Sailing handicaps work?
Handicaps come in two general types: Ratings, in which a numerical measure of a boat’s speed is determined by calculation using physical parameters of the boat – length, beam, displacement (weight), sail area etc. An Empirical Handicap is thus a measure of the performance of both the boat and the crew.
What makes a boat fast?
A boat’s ability to go fast is a balancing act between its length and the power driving it, whether supplied by wind or engine… A boat moving through the water creates a pattern of waves, including one along the vessel’s side that produces a crest of water at the bow and a trough at the stern.
What is a phphrf rating?
PHRF stands for “Performance Handicap Racing Fleet,” and its ratings are used to determine the relative speed potential of any given class of yacht.
What is a average PHRF rating?
Average PHRF Rating. Average ratings are taken from data compiled by the United States Sailing Association, published annually. PHRF stands for “Performance Handicap Racing Fleet,” and its ratings are used to determine the relative speed potential of any given class of yacht.
Does every sailboat have a PHRF rating?
Not every sailboat has a PHRF rating; where none has been found, the expression “NA” (for “Not Available”) is used in this guide. Maximum Speed (also known as hull speed) This is calculated using the formula: Speed = 1.34 x VLWL.