Core Sound 20 Mark 3

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Core Sound 20 Mark 3
Core Sound 20 Mk III sailboat Nimbus 2020 1452.jpg
Development
Designer B&B Yacht Designs
Location United States
Year2014
Builder(s)Amateur builders
Role Cruiser
NameCore Sound 20 Mark 3
Boat
Displacement 1,500 lb (680 kg)
Draft 3.93 ft (1.20 m), with centerboard down
Hull
Type Monohull
Construction Wood
LOA 20.00 ft (6.10 m)
Beam 6.52 ft (1.99 m)
Engine type Outboard motor
Hull appendages
Keel/board type centerboard
Ballast438 lb (199 kg)
Rudder(s)transom-mounted rudder
Rig
Rig type cat rigged ketch
Sails
Sailplan Ketch
Total sail area180 sq ft (17 m2)
[ edit on Wikidata]

The Core Sound 20 Mark 3 is an American sailboat that was designed by B&B Yacht Designs for cruising and first built in 2014. The boat is supplied as a series of kits and plans for amateur construction. [1] [2]

Contents

The Core Sound 20 Mark 3 is a development of the Core Sound 20 and is named for the North Carolinian body of water. [2]

Production

The design's kits are supplied by B&B Yacht Designs of Bayboro, North Carolina, United States. The kit includes pre-cut wooden components, cut with a CNC machine. There are individual kits for the hull, portals, centerboard and rudder, masts, sails, rigging and lines, epoxy and fiberglass. Additional wood is required for hull stringers and other parts to complete the boat. [1] [2]

Design

Core Sound 20 Mk 3 cockpit Core Sound 20 Mk III sailboat Nimbus 2020 1317.jpg
Core Sound 20 Mk 3 cockpit

The Core Sound 20 Mark 3 is a recreational keelboat, built predominantly of stitch and glue 6 mm (0.24 in) okume wood, with two unstayed aluminum masts. It has a loose-footed cat ketch rig with wishbone booms, a slightly raked stem, a plumb transom, a transom-hung rudder controlled by a tiller, a self-draining cockpit and a retractable centerboard keel. It displaces 1,500 lb (680 kg) and carries 17.5 lb (8 kg) of lead ballast in the centerboard tip. The centerboard is of wood, covered with glass cloth and epoxy. It also has a 190 L (50 US gal) flooding water ballast tank, which is drained for road transport. [1]

In 2018, the original design was modified to add a mizzen mast tabernacle to allow easier rigging, as well as greater cabin headroom and simplified construction. The design has provisions for a portable style head. [2]

Earlier versions of the boat have a draft of 3.52 ft (1.07 m) with the centreboard extended and 0.75 ft (0.23 m) with it retracted, allowing beaching or ground transportation on a trailer. Later kits, starting with serial number 20, have a longer centerboard, giving a draft of 3.93 ft (1.20 m). [1]

The boat is normally fitted with a small outboard motor for docking and maneuvering. [1]

See also

Core Sound 20 Mk 3 Core Sound 20 Mk III sailboat Nimbus 2020 1469.jpg
Core Sound 20 Mk 3

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References

  1. 1 2 3 4 5 McArthur, Bruce (2020). "Core Sound 20 Mark 3 sailboat". sailboatdata.com. Archived from the original on 23 June 2020. Retrieved 23 June 2020.
  2. 1 2 3 4 B&B Yacht Designs (2020). "Core Sound 20 Mark 3 Plans". bandbyachtdesigns.com. Archived from the original on 16 June 2020. Retrieved 16 June 2020.
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