Islander 36 Fleet San Francisco Bay

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Islander 36 Fleet San Francisco Bay

• Sail Shaping for Performance Sailors Sail Trim
  Lecture
• Module 2

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Sail Shaping for Performance SailorsSecond Module

• Mainsail Shaping
• Rig Control
• Shifting Gears for Conditions

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Mainsail Shaping

• Mainsail Anatomy
• Mainsail Shaping Tools
• Halyard
• Cunningham
• Outhaul
• Boom Vang
• Mainsheet
• Backstay Adjuster
• Reefing Lines
• Mainsail Shaping

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Mainsail Anatomy
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Mainsail Parts
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(No Transcript)
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Fore Aft Location of Draft in Mainsails
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Twist in the Main
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Vintage Star Main with Twist
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J24 Worlds Main Trim
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Islander 36 Main Trim - Telltales
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Farr 40 Worlds SF - Mainsail Trim
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I36 San Francisco - Mainsail Trim
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Farr 40 Worlds SF - Mainsail Trim
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Islander 36 Mainsail Trim - Twist
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IAC Mainsail Design Our Future
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Sail Shaping for Performance SailorsSecond
Session

• Mainsail Shaping
• Rig Control
• Shifting Gears for Conditions

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Rig Controls

• Masthead Rig
• Backstay Adjuster
• Boom Vang/Preventer
• Roller Furlers

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Islander 36 Rig
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Islander 36 Rig
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Swan World Cup Masthead Rigs
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Islander 36 San Juan Islands Rig Control
Headstay Sag
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IAC Mast Bend/Main Trim
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Angostura Regatta Rig Loss
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The Roller Furler Controversy Angostura Odessy
Roller Furler
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Islander 36 with Roller Furler
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UK Sails Roller Reefing Dacron Genoa
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UK Sails Roller Reefing Mylar Genoa
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Sail Shaping for Performance SailorsSecond Module

• Mainsail Shaping
• Rig Control
• Shifting Gears for Conditions

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Shifting Gears for Conditions

• Lead Positions
• Halyard Trim Draft Forward
• Sheet Trim
• Boom Vang
• Traveler to Leeward
• Mast Bend
• Feathering versus Pinching
• Reefing

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Shifting Gears for Conditions

• First Gear is Used in 0 6kts of Breeze
• Light Wrinkles in Jib Luff
• Draft 45 to 50 Aft for Regular or Point Mode
• Jib Leads 2 Holes Forward
• Medium Wrinkles in Main Luff
• Maximum Main Draft 55
• No Backstay/Mast Bend
• Traveler to Windward and Ease Mainsheet to Induce
  Maximum Leech Curve Vertically
• Boom Vang - Loose
• Induce Heel Crew Weight to Leeward

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Islander 36 - First Gear
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Islander 36 Fleet - First Gear
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Shifting Gears for Conditions

• 2nd Gear is Used in 6 12kts of Breeze
• Light Wrinkles in Jib Luff
• Draft 45 to 50 Aft for Regular or Point Mode
• Jib Leads Regular Position for all Telltales to
  Break at Once
• Medium Wrinkles in Main Luff
• Maximum Main Draft 55
• Light Backstay/ Little Mast Bend
• Traveler Slightly to Windward and Trim Mainsheet
  to Reduce Vertical Leech Curve Increase
  Pointing
• Boom Vang Tension Light to Firm to Restrict
  Boom Lift
• Heel Crew Weight to Windward

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Islander 36 2nd Gear
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Islander 36 2nd Gear
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Shifting Gears for Conditions

• 3rd Gear is Used in 13 18kts of Breeze
• No Wrinkles in Jib Luff
• Draft 45 Aft for Regular or 40 for Power Mode
• Jib Leads 2 Holes Aft Position for Upper
  Telltales to Break First Light Upper Leech
  Twist
• Less Wrinkles in Main Luff
• Cunningham and Outhaul on Hard
• Maximum Main Draft 50
• Medium Backstay/ Moderate Mast Bend
• Traveler Mid-ships and Trim Mainsheet to Reduce
  Twist
• Boom Vang Taught to Very Tight
• Heel All Crew Weight to Windward

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Islander 36 Racing - Third Gear
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Islander 36 Cruising - Third Gear
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Islander 36 Upwind Main Twist
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Shifting Gears for Conditions

• 4th Gear is Used in 19 25kts
• Smaller Headsail Jib
• Halyard Draft Forward (40)
• Jib Leads 3 to 4 Holes Aft Medium Leech Twist
• Bladed Out Main Draft Forward (45)
• Maximum Backstay
• Traveler to Leeward
• Maximum Boom Vang Vang Sheet if Gusty

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Islander 36 4th Gear Trim
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Islander 36 4th Gear Trim
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Shifting Gears for Conditions

• 5th Gear is Used in 25kts and Up
• Reef
• Balance
• Heel
• Draft Forward in Jib for Breakthrough Power
• Jib Leads Aft for Upper Leech Twist (4 to 6
  Holes) De-power
• Flat Main w/Big Speed Bubble Leeward Traveler
• Use Vang Sheeting

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Islander 36 Cruising - 5th Gear Trim
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BOC Single Handed Heavy Air Trim
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5 Key Factors for Success

1. Trim/Sheet Both Sails in Unison
2. Sync up Jib and Main Draft Positions 40/45, 45/50
   and 50/55
3. Use Draft Stripes to Help Set Draft Positions
4. Main Trim Upwind Top Telltale Flying 50, All
   Others Flying 100
5. Feather to Manage Extra Power and Heel

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Sail Shaping for Performance SailorsSecond
Module QA

• Mainsail Shaping
• Rig Types
• Rig Control
• Shifting Gears for Conditions