International 505

International 505

3 Seasons

The International 505 is a one-design high-performance two-person monohull planing dinghy, with spinnaker, utilising a trapeze for the crew.

The hulls of early 505s were built in cold-molded marine plywood, new hulls are now built using composite molding: glass fibre and/or carbon fibre mats and vinylester or epoxy resin using either a wet layup technique or using heat-cured prepreg sheets. Hulls are usually cored with foam, balsa or Nomex to increase stiffness and durability, spars traditionally were manufactured from aluminium alloy, later rule changes have permitted the use of carbon fibre for boom and spinnaker pole.

The hull shape and sail plan are tightly controlled, while the spars, foils and rigging are more open which allows the boat's rig and controls to be set up to the preferences of the crew, rather than dictated by the class rules.

As of 2009, over 9000 505s had been built.

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International 505
  • The Bloody Mary 2016 - Iconic UK Pursuit Race

    Episode 1

    The 43rd Bloody Mary (part of the GJW Direct Sailjuice Winter Series) was held at Queen Mary Sailing Club in January 2016 - the coldest time of the sailing calendar! The iconic pursuit* event is the largest UK inland dinghy race which had 275 boats and 450 sailors enter. Winning the Bloody Mary i...

  • John Merricks Tiger Trophy 2016

    Episode 2

    The Rutland Challenge for the John Merricks Tiger Trophy 2016 (part of the GLW Sailjuice Winter Series). Storm Imogen and Henry arrived in the UK for the weekend of the iconic Tiger Trophy - chaotic weather conditions for over 150 sailors with epic footage of extreme sailing at its best. The 420 ...

  • Dinghy Show 2016 - 505

    Episode 3

    The 505 UK Class Association is hosting the 2016 World Champs in Weymouth this summer and Chairman, Roger Dean, explained why the regatta is not to be missed! The 505 is celebrating it's 65th birthday so there has been an introduction of the 'Classic' fleet for boats over 25 years old - it maybe ...

  • Dinghy Show 2016 - Bloopers

    Episode 4

    RYA Suzuki Dinghy Show 2016 - Blooper reel with cameo roles from Sally Dugdale (ITCA GBR), Ben Falat (D-One), Simon Moruzzi (Dart 18), John McAfee (NeilPryde Sailing), Dave Hayes (Selden Masts), Tilly Chester & Alice Butterworth (VR Sport Media Crew), Roger Dean (505 GBR), Peter Lillingston (Marl...