Islander 36 fleet san francisco bay
This presentation is the property of its rightful owner.
Sponsored Links
1 / 43

Islander 36 Fleet San Francisco Bay PowerPoint PPT Presentation


  • 48 Views
  • Uploaded on
  • Presentation posted in: General

Islander 36 Fleet San Francisco Bay. Sail Shaping for Performance Sailors Sail Trim Lecture Module #3. Sail Shaping for Performance Sailors Third Module. Trim Loops Helm/Sail Feedback Spinnaker Shaping. J24 Parallel Leeches. Islander 36 Parallel Leeches.

Download Presentation

Islander 36 Fleet San Francisco Bay

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Islander 36 FleetSan Francisco Bay

Sail Shaping for Performance Sailors Sail Trim Lecture

Module #3


Sail Shaping for Performance SailorsThird Module

  • Trim Loops

  • Helm/Sail Feedback

  • Spinnaker Shaping


J24 Parallel Leeches


Islander 36 Parallel Leeches


Sail Shaping for Performance SailorsThird Module

  • Trim Loops

  • Helm/Sail Feedback

  • Spinnaker Shaping


Trim Loops

  • Telltales

  • Jib Trim – Distance From Spreaders

  • Traveler Control Use

  • Backstay Control Use

  • Knot Meter

  • Crew Feedback

  • Two Boat Tuning

  • Velocity Prediction Programs – VPP & Polar Diagrams

  • Performance Prediction Programs – Target Boat Speeds


Telltales - Point Mode


I36 Polar Diagram - VPP


I36 Performance Prediction


Trim Loops – Instrument Use

  • AWA = Apparent Wind Angle

  • AWS = Apparent Wind Speed

  • TWA = True Wind Angle

  • TWS = True Wind Speed

  • S = Boat Speed in Knots (Fun Meter!)

  • VMG = Velocity Made Good


Sail Shaping for Performance SailorsThird Module

  • Trim Loops

  • Helm/Sail Feedback

  • Spinnaker Shaping


Helm/Sail Feedback

  • Slight Weather Helm Set-up

  • Perfectly Balanced Helm - Fast

  • Upwind Puff Cards - Heel and Induced Weather Helm


IAC Sail Trim - Telltales


IAC Genoa Trim & Draft Stripes


Sail Shaping for Performance SailorsThird Module

  • Trim Loops

  • Helm/Sail Feedback

  • Spinnaker Shaping


Symmetrical Spinnakers

  • Generational Designs & Specialty Designs

  • Trim Fundamentals

  • Special Circumstance Trim Requirements


General Spinnaker Designs


1970’s Islander 36Radial Head Symmetrical Spinnaker


I36 Tri-RadialSymmetrical Spinnaker


Islander 36 Genniker/Cruising Spinnaker


Symmetrical Spinnaker Trim Fundamentals

  • Hoist

  • Trim

  • Gybing

  • Douse

  • Control


One Ton Cup Hoist – “Ringing the Bell”


J24 Spinnaker Hoist


J24 2002 NAs HoistingDeeper Angle When it’s Blowing


Spinnaker Trim


Wind Tunnel Demonstrating Flow


J24 Spinnaker Leech Curves


Islander 36 Spinnaker Trim


Farr 40 Worlds SF Symmetrical Spinnaker Trim


IAC LVC Finals – Symmetrical


Islander 36 Reaching Trim


IAC Symmetrical Running


IAC Oracle BMW Leeward Takedown


Special CircumstancesIAC Alinghi Spinnaker Set


J24 2005 Nationals30 Knot Squall


J24 2005 Nationals37 Knot Squall


Wing-on-Wing“The Other Option”


The “Other Option” Continued


Sail Shaping for Performance SailorsThird Module

  • Trim Loops

  • Helm/Sail Feedback

  • Spinnaker Shaping


5 Key Factors for Success

  • Trim Spinnaker with Constant 3 “ to 6” Curl

  • Square the Pole Visually By Vertical Luff and Vertical Center Seam

  • Keep Windward Clew (the tack) Slightly Lower

  • Luff Breaking Too High – Pole Up, Breaking Too Low - Pole Down

  • Always Remember to Have Fun!


I36 Fleet Racing SF Bay“The Chess Game”


Sail Shaping for Performance SailorsFinal Q&A

  • Trim Loops

  • Helm/Sail Feedback

  • Spinnaker Shaping


Time to go Sailing!


  • Login