K-23, DuraKore Sport Boat
k23 sailplan

General Specifications
LOA 23' 4-1/2"
LWL 20' 0"
Beam (max) 7' 9-1/4"
Draft 4' 11"
Displacement 1780 lbs.
Sail Area (fore & main) 241 sq. ft.
Spinnaker Area 220 sq. ft.
SA/D 26
D/L 99
Upwind ratio 4.3
Downwind ratio 7.0
Trailer Weight 1330 lbs.
Pounds per inch 463 lbs.
Sailing skill level Intermediate


K-23 was designed to be a moderate size, entry-level sport boat without any cruising affectations. The cuddy is designed for storage only. Eliminating the deckhouse and accommodations simplifies construction and allows weight to be reduced for higher performance. The decks are totally clear with over 12' of usable cockpit length. This allows hardware layout and sheeting angles to be optimized with lots of flexibility in crew placement for best trim. Designed as an entry-level, handicap racer or performance daysailer, the K-23 offers exiting sailing for the average person and does not require undue athletic ability to sail well.

K-23's sail plan is simple and powerful. A standard retractable bowsprit maximizes spinnaker area and moves the luff forward into clear air. The non-overlapping 90% jib tacks quickly and sets with just a quick pull on the sheet. The standard Dwyer aluminum mast is keel-stepped for strength and weight reduction. Spreaders are swept back, eliminating the need for running backstays. The outside ballast and overall larger size of this design allows a cleaner hull shape and finer entry angle relative to the smaller boats in the K series. Please note, the plan set also includes details for an optional lifting ballast keel to ease trailer launching and retrieval. Pre-lofted offsets are provided for all construction molds, keel plank and stem profile. Full-size patterns are provided for the rudder and fin/lifting keel.

Construction is of Baltek DuraKore balsa core strip-planking and marine plywood. The DuraKore system is a great way to build a boat that's light and strong and is ideally suited to one-off, amateur construction. For those of you who may wish to build with more conventional, lower cost materials, instructions are available for wood veneer cold-molding or solid wood strip-planking. Please state your preference at time of order.

For more information about working with DuraKore, check out David Brown's Boatbuilding with Baltek DuraKore available from the NMD bookstore.






k23 section
K-23, Construction Specifications
Hull: Baltek Durakore, cold-molded wood-epoxy veneers or wood strip-planking with bi-directional glass cloth sheathing
Deck and structure: Okoume marine plywood and mahogany
Foils: Stack-laminated wood from patterns with glass cloth reinforcement
Rig: Standard Dwyer aluminum spar sections and fittings
Building skill level: Intermediate
 

Plan Set Pricing/Purchase


Complete set incl. full-size patterns $150.00 US

 

Study plan $20.00 US
   

 

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