CORE SOUND 20 MARK 3

CORE SOUND 20 MARK 3

Beta Marine

Beta Marine

Sailboat Specifications

Definitions
Hull Type: Cbrd w/outboard rudder
Rigging Type: Cat Ketch
LOA: 20.00 ft / 6.10 m
LWL: 18.67 ft / 5.69 m
S.A. (reported): 180.00 ft² / 16.72 m²
Beam: 6.52 ft / 1.99 m
Displacement: 1,500.00 lb / 680 kg
Ballast: 438.00 lb / 199 kg
Max Draft: 3.52 ft / 1.07 m
Min Draft: 0.75 ft / 0.23 m
Construction: Wood
Ballast Type: Lead and water
First Built: 2014
Builder: Various - Kits available
Designer: B&B Yacht Designs

Auxiliary Power/Tanks (orig. equip.)

Type: Outboard

Sailboat Calculations

Definitions
S.A. / Displ.: 22.02
Bal. / Displ.: 29.20
Disp: / Len: 102.90
Comfort Ratio: 10.00
Capsize Screening Formula: 2.28
Hull Speed: 5.79 kn
Pounds/Inch Immersion: 434.95 pounds/inch

calculation mobile

2 nd ad half width

3rd ad full width

Sailboat Links

Download Boat Record:

Notes

Plan can be purchased through B&B Yacht Designs at the URL above.
17.5 lbs of lead on tip of wood (covered in glass cloth and epoxy) centerboard.
Water ballast: 190 liters = 190 kg / 420 lbs.
Ballast listed above is lead + full water tank.
Beginning with kit (hull) #20, the draft with board down is 3.93 feet or 1.20 meters.
Thanks to owner/builder David Wilkins for supplying information on this boat.
Photo courtesy Adam Hunt.