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• interviews
  • Anna Tunnicliffe
    • David Schmidt interviews Anna Tunnicliffe,USSTAG Match Racing skipper
      
      
  • Mark Mendelblatt
    • David Schmidt interviews Mark Mendelblatt,USSTAG Star skipper
      
      
  • Erik Storck
    • David Schmidt interviews Erik Storck,USSTAG 49ER skipper
      
      
  • Zach Railey
    • David Schmidt interviews Zach Railey, USSTAG Finn sailor.
      
  • Paige Railey
    • David Schmidt interviews Paige Railey USSTAG Laser Radial sailor.
  • Bora Gulari
    • David Schmidt interviews Bora Gulari, Moth Champion
  • Jonathan McKee
    • David Schmidt interviews Jonathan McKee about the value of teamwork.
  • Mischa Heemskerk
    • David Schmidt interviews Mischa Heemskerk about rigging for speed on the F18.
  • Tom Slingsby
    • David Schmidt interviews Tom Slingsby about how he has trained to achieve world class status in the Laser.
  • Seb Josse
    • 
      Harken Interviews Seb Josse before the 2008 Vendee Globe Challenge.
  • Sam Davies
    • 
      Sam Davies fulfills a life-long dream as skipper of the Open 60 Roxie in the Vendée Globe.
  • Open 60 Deck Design - Harken France
    • 
      Managing Director Patrick Rieupeyrout and Technical Service Manager Jean Martins discuss Open 60s and the company's role in the Vendée Globe.
  • Grant Simmer
    • 
      Managing Director and Design coordinator of the America's Yacht Alinghi expresses his views on improved winch efficiency,the rules on stored energy, and the development of a new AC class.
• racing
  • SAIL Magazine
    • 
      Sail Magazine writes about Harken in 2009 AC.
  • Mini Maxi Fever
    • 
      Mini Maxis are future-focused yachts sailed by athletes that continuously chase higher efficiency and test out the newest high-performance technology.
  • America's Cup
    • 
      Peter and Olaf Harken discuss the development of Harken hardware.
  • AC Trickledown
    • 
      All Harken customers benefit from our America's Cup research and development with the taxing conditions providing the ultimate test for our gear.
  • Block Development
    • 
      Like many good ideas, Peter Harken's decision to use plastic instead of steel ball bearings in his boat hardware was born of necessity.
  • Paralympics
    • 
      John Ruf turns a life-altering event into an opportunity to excel in a sport he loves— from racing E-Scows to representing the U.S. at the 2008 Paralympic Games in Qingdao, China.
  • Optimists
    • 
      Learn why this 8 ft, flat-bottomed kid's boat has become the first trainer for many of the world's best. And why this unassuming dinghy has brought more new sailors into the sport than any other.
  • Morning Light
    • 
      Roy Disney talks about his documentary Morning Light, an unscripted, full-length film that follows the selection and training of 15 young sailors for the 2007 Transpacific Yacht.
  • Chasing Records
    • 
      Join Matteo Miceli on his solo record-setting passage from Gran Canaria to Guadaloupe in his 6 m (20 ft) beach cat Biondina Nera.
• cruising
  • Electric Furling
    • We answer your questions about Electric Furling
  • Salperton
    • 
      Barry Houghton's sleek cruising sloop Salperton combines the luxury of a contemporary home with the performance of an elegant race boat.
  • Turkish Gulets
    • 
      Turkish Distributor Ibrahim Karatas focuses on gulet-type boats with an eye to improving the performance of these lavish Turkish motorsailers.

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Downhaul
Due to strong apparent wind caused by the speed of foiling, flattening the sail with the downhaul makes the boat faster and easier to control. 6:1 double-ended downhauls are common, but racers like Bora Gulari, '09 World Champ and Moth speed record holder, have used Harken 16 mm blocks to create even higher purchases.

Vang
Vang tension is critical in generating the power to lift off. The 16:1 double-ended system also allows for "vang sheeting" upwind to control shape and twist.

Mainsheet
The Ratchamatic® ratchet disengages under light loads to allow fingertip control. Ratchamatics and T2s™ have strong ball bearings on curved races to make secondary bearings unnecessary—which means adjustments are lightning-fast under any load. Many racers add an additional block for a 4:1 system to reduce sheet load.

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Copyright© 2011 Harken, Inc. All rights reserved
If you would like to link to or reprint this article please contact Brownie Lewis
 

CLASS HISTORY
The International Moth has one-design roots, but 30 years of developmental rules have metamorphosed the early Moth's 110 pound, flat-bottomed hull into a 22 pound speed machine. Today's 11 foot single-handed Moths foil in 6 knots and kiss 30 in heavy air. The current design earns its international name—it is the fusion of the American Moth Boat, Australian Inverlock, Swiss-inspired hiking wings, and a hydrofoil from the UK.

LINKS
International Moth Class
US Moth Class
Dealers
McLube

BOAT SPECIFICATIONS
Length overall: 3.355 m
Beam: 2.250 m
Max. luff length: 5.185 m
Max. mast length: 6.250 m
Sail area: 8m