Jervis Bay Sailing Club

Program for Jervis Bay Sailing Club

Jump to Courses and Information
Please click  DRAFT CALENDAR/PROGRAM  for a copy of the DRAFT program in PDF.
Note: There are likely to be many changes as events at other clubs are confirmed
For Latest Minutes Advantage Handicaps for Pointscore Races in PDF click  HERE

Jervis Bay Sailing Club 2022-2023 Calendar - VERY EARLY DRAFT!

Please provide comments and suggestions so it can be finalised in July/August

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Courses and Race Length Information

The Club runs three series throughout the season using various courses (see below):

• Championship (scratch start).
• Sprint (scratch start).
• Pointscore (handicap start).

Common Courses - Olympic Triangle with Port Roundings (Red Flag) (as shown in diagram); Starboard roundings can be used (Green Flag)

The courses for the three events run by the club are:

Championship (scratch start / yardstick) - Aim for two races on each Championship Day, back-to-back => Indicative Race Duration 45 minutes (600 m leg lengths in around 10 knots)
=> Start-Triangle-Sausage-Triangle-Finish

Sprints (scratch start / yardstick) - Aim for 4-6 races each Sprints Day, back-to-back => Indicative Race Duration 20 minutes (500 m leg lengths in around 10 knots)
=> Start-Triangle-Sausage-Finish

Pointscore (handicap start - minutes advantage) => Indicative Race Duration 90 minutes (900 m leg lengths in around 10 knots)
=> Start-Triangle-Sausage-Triangle-Sausage-Finish
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Indicative 60-60-60 Triangle leg lengths for race duration for various wind speeds

Note:
Yellow Marine Park buoys => 1380 m apart
Red Hazard Buoys => 800 m apart

Pointscore

Championship

Sprints

Laser Speeds for Upwind, Runs and Reaches under various wind strengths

See this link for addition leg length guides for Regattas

REGATTA - Indicative Leg lengths for race duration under various wind speeds

Amendments to the Pointscore Handicap Systems

Note: For the Pointscore the slower yachts are given several minutes start ahead of the faster yachts ('Catch me if you can'). Ideally all yachts should finish very close together.

The handicaps are adjusted after each race according to the following scheme:
1st place => loss of 2 minutes
2nd place => loss of 1 minute
3rd place => no change - stay as you are
4th place and all other starters (including DNF) => plus 1 minute
All non-starters have no change to their handicaps, except when all the scores need to be adjusted to avoid negatives. For example, when the winner has a Minutes Advantage Handicap of 1 minute and would lose 2 minutes, to a -1 minute handicap for the first place, ALL handicaps are increased by 1 minute so that the winner's new handicap is 0 (zero).
Note: The committee and handicapper will make periodic adjustments to the system to keep it as fair and functional as possible, and to assign handicaps to new members and visitors.
See the latest Minutes Advantage Handicaps as PDF

Course Area Distance Guide (see attached map below)

• 1380 m between Yellow Marine Park buoys
• 800 m between two Red port buoys (Brolga and Point Buoys)
• 1580 m between Point Red Buoy to Yellow Marine Park buoys
• 1760 m from Red Brolga Buoy to Yellow Marine Park buoy A1
• 2090 m from Red Brolga Buoy to Red Rock
• 1086 m from Red Rock to Yellow Marine Park buoy A1

Incidentally => From the Red Point buoy to the top Yellow Marine Park buoy (A1) is NE and 1580 m in length, so setting bottom mark 200 m out from red buoy in that direction and setting the top mark after travelling 800 m towards the A1 Marine Park Buoy gives a great default set up for prevailing NE winds with an ideal leg length of about 800 m.

Note: Leg lengths can be set using the yellow GPS tool, or an app you install on your phone, or the Map Plotter, or by motoring at a constant speed or revs between the two red buoys and noting the time taken for this 800 m distance. Motor for the same time and speed to set the distance between the buoys for your course.

See the Map below for the distances between key markers in the bay

Download the map as a PDF Course Area Distance Guide

Expected Race Times for Various Yardsticks