After a race, each boat's elapsed time (the time she has taken to complete the course) is multiplied by her TCC to calculate her corrected time (her race time making allowance for the characteristics of the boat). The boat with the shortest corrected time is the winner of the race.
How do you calculate time on sailing?
TCF = 650 / (550 + PHRF)
To get the corrected time, simply multiply the elapsed time by the TCF. TOT scoring is not a cure-all for all the inequities of handicapping. TOT scoring will not turn a fleet upside down. It usually does not affect the top boats.
What is time correction factor?
Time Correction Factor (TC)
The net Time Correction Factor (in minutes) accounts for the variation of the Local Solar Time (LST) within a given time zone due to the longitude variations within the time zone and also incorporates the EoT above.
What does TCF mean in sailing?
A vessel's 'form' or recorded performance will be taken directly into account with a handicap system, whereas a rule of rating relies purely on a set of dimensions and other relevant data being fed into a formula to give a Time Correction Factor (TCF).
What does IRC mean in sailing?
IRC stands for International Rating Certificate. Originally, “IR” was an abbreviation for International Rule. However, since the Rule at that stage was not recognized under International Rule (sailing), that name was not permitted.
28 related questions foundHow 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 is PHRF sailboat rating?
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 is sailing handicap calculated?
The achieved handicap for each boat in a race is calculated as follows: The sum of the Handicaps used by all the boats that took part in the race divided by the sum of the adjustment scales from boats that took part in the race, multiplied by the individual adjustment scales of boats that took part in the race.
What's the difference between solar time and clock time?
The solar time for your site may differ from the actual clock time by as much as plus or minus 45 minutes at a given time of year. The amount of variation constantly changes and is influenced by the time of year and your position on the earth.
What is longitudinal correction?
Longitude Correction: is the correction required to local apparent time (L.A.T.) to translate it to the L.A.T. for the central meridian for that time zone. Standard Time Zone: a geographical region which uses the same civil (clock) time.
How do you calculate local time?
Local time is one hour ahead for each time zone as one travels east, and one hour behind for each time zone as one travels west. So, for example, when it is noon in New York City, it is 11:00 a.m. in Chicago, 10:00 a.m. in Denver, and 9:00 a.m. in Los Angeles. See more at International Date Line.
How long does it take to sail 100 miles?
Depending on the size of your boat and the maximum cruising speed, a 100 nm sailing journey typically takes in the range of 10-16 hours. Using the calculations shown above, you can adjust how far you're going, and the conditions, and get a rough idea of your timing.
How is ETA calculated on a ship?
ETA is purely a statistical term and based on simple formula i.e. Time (ETA) is equal to distance divided by speed of travel, transportation.
How many nautical miles can you sail in a day?
How many nautical miles can you sail in a day? On average, sailboats can sail up to 100 NM (115 miles or 185 km) in one day when they run downwind. If the engine is used at all, this distance can increase to 130 NM on longer passages. With shorter passages, 60 NM is more typical.
How do you calculate solar hours?
To determine Lst, multiply the difference in time between local standard clock time and Greenwich Mean Time (GMT) by 15°. This relationship comes from the fact that the sun takes 4 minutes to traverse 1° of longitude. Thus, if your local standard clock is 1 hour behind GMT then LST is 15°.
How do you calculate true solar time?
True solar time is determined by the difference between the Greenwich Hour Angle of a location (which is fixed) and that of the sun, which changes by approximately15° an hour as it traverses the sky.
Why is solar noon not at 12?
In most places on Earth, solar noon does not happen at 12 o'clock. The Earth's rotation slowly shifts the meridian experiencing solar noon from east to west. In other words, solar noon happens a little earlier in locations just east of you and a little later in locations west of you.
How does ORC rating work?
ORC Triple Number scoring recognizes wind speeds as either Low (<9 knots), Medium (9-14 knots) or High (15+ knots), which will be signaled by the Race Committee – the Sailing Instructions for the ORC courses will give further details.
How is Portsmouth Yardstick calculated?
In a race involving a mixed fleet, finishing times can be adjusted using the formula: Corrected Time = Elapsed Time × Scale / Handicap.
What is a good Phrf?
PHRF 30 to 70: The J/120 has consistently demonstrated excellent all-around performance to its typical rating.
What is ETD and ETA in shipping?
ETD is the abbreviated version of Expected or Estimated Time of Departure while ETA stands for Expected or Estimated Time of Arrival. ETD could be the estimated departure time of the shipper's cargo on board a vessel or that of the transport vessel itself.
What is etc ETD ETA?
ETA, ETC, ETD, ETR, ETS. Estimated time of arrival, completion, departure, readiness or sailing.
What is ETC or ETD?
ETDel vs ETC
As we said, ETDel refers to the actual handing over of shipments or goods, while ETC is often used in the service industry. For example, if you have a 10 am appointment for equipment maintenance that is expected to take 3 hours, ETC is 1 pm.
What was the minimum age of a sailor?
REQUIREMENTS TO BECOME A SAILOR
Be a U.S. citizen; or Legal Permanent Resident (Enlisted) Be between the ages of 17 and 39 to enlist or be between 19 and 42 to become an Officer* Have a high school diploma or GED equivalent (Enlisted) or have a four-year degree from an accredited university (Officer)
What is the average speed of a sailboat?
That being said, the average speed of racing sailboats is 15 knots (17 mph). On the other hand, the average speed of cruising sailboats is 4-6 knots (4.5-7 mph) and can attain a top speed of 7 knots (8 mph).
