Multihulls

MULTIHULLS | FORMULA 18

The F18 represents a major market for Ullman Sails, a constantly evolving product always up to date. Sail plans are developed in close collaboration with mast producers, sailors and boat producers in order to have the ideal sail to fit each specific boat.

In 2006, the Class updated the measurement rules, changing the construction of both the mainsail and the jib. The new mainsail rule limited the head width of the sail, thus restricting sail area distribution.

As a result, all F-18 mainsails on the market have become very similar.

The new jib rule simplified the boat by removing the furling system and requiring the jib to have full length battens. The full length battens were a marked improvement as the change increased both the stability and durability of the sail.

Research and Sail Testing
In anticipation for the 2006 rule change, our sailmakers spent considerable time testing and developing new designs and construction techniques. As a result, our sail designs immediately performed at maximum efficiency within the new rules

Main
The F18 represents a major market for Ullman Sails, a constantly evolving product always up to date. Sail plans are developed in close collaboration with mast producers, sailors and boat producers in order to have the ideal sail to fit each specific boat.

Jib
Like all other sails, jib has a perimeter measured to fit the front triangle of each specific boat:

The area is always maximum with specific attention to:

  • right clew angle
  • as High aspect as possible
  • foot of the sail in line with the foot of the main
  • window positioned and sizes for correct view;
  • leech profile matching the main/jib slot
  • full battens especially developed for F18 jibs, tapered and with the right stiffness to properly cover the widest wind range
  • tack ring attach to properly swing through tacks

The sail is radial using Contender Apen06-3mil cloth which is available in white or smoke colours.

Gennaker
Clew height is calculated to suit the standard ratchet position however we still recommend testing the barbers.
The sail has luff line for knockling entry control. It is produced in nylon not siliconed, superkote 80 (especially produced for radial constructions) which has lately replaced superkote75. Upon request it can also be produced in polyester.

The sail is supplied already holmenkolled.
The latest improvements made on the sail are on the panel lay out, it has increased the number of panels which grants the loads to be better distributed increasing the sail life. The corner reinforcing were redesigned for a better load support.

 

MULTIHULLS | TORNADO

Mainsail
We produce three different shapes with different cloth types and panel layout configurations. Each design has been proven on the race course and has been used by top competitors including the 2007 World Champions.

M6 Design

  • 2nd Place:
    • 2008 World Championship, New Zealand
    • Oskar Johansson and Kevin Stittle (Canada)
  • 2nd Place:
    • 2007 World Championship, Portugal
    • Carolijn Brouwer & Sebastien Godefroid (Belgium)

This is a cross-cut construction sail made out of Dimension FLX13P with horizontal panels. The batten pockets run along the seams which are ultrasonic bonded (making the joints stronger than the cloth itself).

This model is ideal for the widest wind ranges and has proven to be the most batten sensible mainsail. The shape was designed with SMSW6 design software and was first tested introduced in 2005.

PLR4 & CC4 Designs

  • 1st Place:
    • 2007 World Championship, Cascais, Portugal
    • Fernando Echavarri & Anton Paz (Spain) with PLR4
  • 4th Place:
    • 2008 World Championship, Takapuna, New Zealand
    • Roland Gaebler & Gunnar Struckman (Germany)
  • 7th Place:
    • 2008 World Championship, Takapuna, New Zealand
    • Fernando Echavarri & Anton Paz (Spain)

Both sails have the same shape, but are vary in their construction. The PLR4 is a radial mainsail built out of Contender Apen, while the CC4 model is a cross-cut mainsail built out of Dimension FLX13P cloth.

This design is a very powerful sail ideal for a specific wind range when both crews are on the wire up to 19/20 knots of breeze. The sail becomes too round in less than 8 knots and too powerful over 22 knots.

We have recently produced an updated, alternative version of each design – known as the PLR5 and CC5 – with a different luff curve that makes the sail better in a larger wind range plus ideal for lighter crews.

TM51717 Design
Our newest development, this design is some major differences in the draft wing position, twist numbers and mast bend data. This shape has proven excellent, particularly in very light to medium conditions. We can produced this design in a number of different cloth types.

Jib
We produce three different jibs, all with the same window material variables:

  • LP29
  • AP7-P9
  • AP7-M10

LP29 design
The LP29 design is the flattest jib we build.

AP7-P9 and AP7-M10
These two designs are different in the top part of the sails where the AP7-M10 has a straighter exit AP7-P9.

Mostly of our jibs are produced using Dimension PE15-1.5mil with front luff pane in PE110-1.5mil. Often we do them all in PE10-1.5 mil and different windows done from standard Dimension T725-4 mil to crazy light material.

Spinnakers
The fastest proven design is the HNDY9 which won the 2007 World Championships. We have changed the name although the panel layout and construction are the same. We primarily produce this spinnaker in Contender nylon superkote80, although it can be produced in other cloths including polyester or Formulon50 for light conditions.
Every spinnaker is delivered with patches and is coated in Holmenkol product to make the sail slippery.

Cloth Options
Choosing the best cloth is a constant topic of discussion amongst Tornado competitors. After years of research and testing, we have compiled a list of different cloth properties. 

 

 

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Contact Info
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Ullman Sails Turkey
Metal İşleri Sanayii Sitesi, 2.Cad. No:131 35470
Izmir, TURKEY
Tel: +90 (232) 257 634
Fax: +90 (232) 257 6241
e-Mail:info@ullmansails-turkiye.com