Engineering:Twitchell 12

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Short description: Sailboat class
Twitchell 12

T12
Development
DesignerRon Holder
LocationUnited States
Year1991
No. built27
Builder(s)W. D. Schock Corp
RoleSailing dinghy
Boat
Boat weight165 lb (75 kg)
Draft2.00 ft (0.61 m) with daggerboard down
Hull
Typemonohull
Constructionfiberglass
LOA12.00 ft (3.66 m)
LWL10.83 ft (3.30 m)
Beam4.50 ft (1.37 m)
Hull appendages
Keel/board typedaggerboard
Rudder(s)transom-mounted rudder
Rig
Rig typeBermuda rig
Sails
Sailplanfractional rigged sloop
Total sail area68.00 sq ft (6.317 m2)

The Twitchell 12 is an American sailboat that was designed by Ron Holder as a day sailer for people with limited mobility and first built in 1991.[1][2][3][4]

Production

The design was built by W. D. Schock Corp in the United States, from 1991 until 1993, with 27 boats completed, but it is now out of production.[1][2][5][6][7][8]

Design

The Twitchell 12 is a recreational sailing dinghy, built predominantly of fiberglass, with wood trim. It has a fractional sloop rig with a jib boom, a raked stem, a reverse transom, a transom-hung rudder controlled by a cockpit joystick and a retractable daggerboard. It displaces 165 lb (75 kg).[1][2]

The boat has a draft of 2.00 ft (0.61 m) with the daggerboard extended and 6 in (15 cm) with it retracted, allowing operation in shallow water, beaching or ground transportation on a trailer.[1][2]

The design has a hull speed of 4.41 kn (8.17 km/h).[2]

See also

Similar sailboats

References

  1. 1.0 1.1 1.2 1.3 McArthur, Bruce (2022). "Twitchell 12 sailboat". sailboatdata.com. https://sailboatdata.com/sailboat/twitchell-12. 
  2. 2.0 2.1 2.2 2.3 2.4 Sea Time Tech, LLC (2022). "Twitchell 12". sailboat.guide. https://sailboat.guide/schock/twitchell-12. 
  3. McArthur, Bruce (2022). "Ron Holder". sailboatdata.com. https://sailboatdata.com/designer/holder-ron. 
  4. Sea Time Tech, LLC (2022). "Ron Holder". sailboat.guide. https://sailboat.guide/ron-holder. 
  5. McArthur, Bruce (2022). "Schock W.D.". sailboatdata.com. https://sailboatdata.com/builder/schock-wd. 
  6. Sea Time Tech, LLC (2022). "Schock W.D.". sailboat.guide. https://sailboat.guide/schock. 
  7. W. D. Schock Corp (2022). "About Us". wdschockcorp.com. https://wdschockcorp.com/about-us. 
  8. W. D. Schock Corp. "Boats built by W.D. Schock". wdschock.com. http://wdschock.com/history/boatlist.htm. 

External links