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Class symbol
J/105 sailing downwind under spinnaker.
Current specifications
Crew 2–3
Type Monohull
Design One-Design
Construction GRP
Rig Fractional rig
Keel Fixed
LOA 10.52 m (34.5 ft)
LWL 8.99 m (29.5 ft)
Beam 3.35 m (11.0 ft)
Draft 1.98 m (6 ft 6 in)
Hull weight 3,515 kg (7,749 lb)
Total sail area 53.6 m2 (577 sq ft)
Year 1995–
Designer Rod Johnstone
Infobox last updated: 30/01/2013

The International J/105 is a fixed keel one design racing sailboat. It was the first production boat featuring a retractable bowsprit, which allows for an unusually large asymmetric spinnaker.[1] It was introduced in 1991 by J/Boats and designed by Rod Johnstone.[2] J/105s are a common sight in one design racing[3] and to date, Jboats has built over 680 J/105s.[4] The J/105 is regarded as a fast design with a clean deck layout.[5] It was selected as the 1992 "Boat of the Year" in the Racer/Cruiser category by Sailing World Magazine.[3][6][7]

The concept behind the J/105 line is to produce boats that are fast, strong, fun and easy to sail shorthanded while racing in One Design fleets or while cruising with dodger raised, sails furled and swim ladder swung off the transom.

J/105 has the stability, rig and sail controls to handle 15-20 knot winds without the need of reefing. It has the strength and seaworthiness for oceangoing passages.

The J/105 is the most successful one-design keelboat class over 30' in the USA with over 680 boats sailing worldwide. The class association is an owner managed organization with strict one-design rules. In addition to its active use in one design sailing, the J/105s affordability makes it an attractive choice for PHRF and Single/Double handed offshore sailing. J/105s are also well suited for community sailing programs training high school age sailors in keel boat and offshore racing.

In 2008, J/Boats announced that new J/105 production commenced at the US Watercraft facility in Portsmouth, Rhode Island. US Watercraft is also the official builder for the International J/22 (since 2001) and International J/24 (since 1999).


  1. ^ Robert H. Perry (November 2006). "J/105". Sailing Magazine. Retrieved 2007-02-23. [dead link]
  2. ^ "Why Buy a J/105?". J/105 Class Association. Retrieved 2007-02-23. 
  3. ^ a b Jack Horner. "BoatUS.com: Boat Reviews by Jack Horner, N.A. - J-105". Retrieved 2007-02-23. 
  4. ^ "J/105". JBoats. JBoats. Retrieved 17 February 2015. 
  5. ^ Robert H. Perry (1992). "Perry Design Review: J/105". Sailing Magazine. Retrieved 2007-02-23. 
  6. ^ "Boat of the Year Winners (1985-2003)". Sailing World Magazine. 2003-08-23. Retrieved 2007-02-23. 
  7. ^ Graham Jones (1998). "Fast and Simple". Canadian Yachting Magazine. Retrieved 2007-02-26. 

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