505 Class

The Rondar model wins the 2015 World Championships !

Now 18 world championship wins since 1993 - "The world's fastest 505" and NEW MODEL

Although designed and introduced in 1953, the 505 is still accepted as one of the most successful and attractive designs with over 9000 craft registered worldwide. Unhindered by selection for the Olympics, the Class has grown steadily to become the premier quality two man racing machine. Backed by an active UK and World Class Association, sailors can enjoy outstanding racing at every level from club to World Championships. Fleets are found at most major sailing venues.

More History can be found at: www.int505.org


Tactically demanding, the 505 excels in all weather conditions and has become a favourite with top helmsmen around the world. Although a large and powerful dinghy, the 505 is stable and forgiving. The wide decks make it one of the most comfortable craft to sail, with good all round visibility. The forward hull form and wide forward flare ensure that it rarely drops its nose into a wave and the 505 has rightly gained the distinction of probably being the best sailing craft for its size in all weather conditions. The spinnaker, launched from a forward tube, boosts performance, offering dazzling rides down the reaches. However this craft requires a high degree of handling competence and tactical ability to achieve winning performance.

More History can be found at: www.int505.org


Rondar boats dominated the recent 505 Worlds at Kiel Germany, with first to fourth overall and 11 boats in the top twelve. Rondar Boats have been building the 505 dinghy for over 25 years and are now the predominant builder, winning over 180 national, international and world championships. Numerous innovative improvements to both design and construction have been introduced through our policy of product development.

NEW 2014 MODEL !
We are pleased to announce that we are in production with the NEW 2014 model, which offers significant structural and stiffness advantages, but still with the proven fastest hull firm in the world. read more...


Our standard boat features construction with SP Systems epoxy resins with tri-axial cloth. Carbon and kevlar reinforcement are used extensively in high stress areas and vacuum bag foam sandwich construction is used in deck and hull mouldings.

505 Specification

Many variations are possible to the standard layout as each boat is built to your specific requirements. All are fitted out to the highest quality using the best racing equipment available. A comprehensive choice of spars, sails and equipment enable our customers to refine and personalise their craft. Any colour scheme is available.

Technical Specifications:
Designer John Westell
Crew: 2 persons
Length: 5.05 metres 16' 6"
Beam: 1.88 metres 6' 22"
Sailing Weight: 127.4 kg 280 lbs
PY: 902
Sail Area:
Main & Jib 23.44 sq. m 175 sq. ft
Spinnaker 23.33 sq. m 251 sq. ft