Engineering:Cal 27

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Short description: Sailboat class
Cal 27
Development
DesignerWilliam Lapworth
LocationUnited States
Year1971
No. built306
Builder(s)Jensen Marine
Boat
Boat weight5,400 lb (2,449 kg)
Hull
TypeMonohull
ConstructionFiberglass
LOA27.34 ft (8.33 m)
LWL22.33 ft (6.81 m)
Beam9.00 ft (2.74 m)
Hull draft4.50 ft (1.37 m)
Hull appendages
Keel/board typefin keel
Ballast2,725 lb (1,236 kg)
Rudder(s)internally-mounted spade-type rudder
Rig
GeneralMasthead sloop
I (foretriangle height)34.50 ft (10.52 m)
J (foretriangle base)12.00 ft (3.66 m)
P (mainsail luff)27.75 ft (8.46 m)
E (mainsail foot)10.25 ft (3.12 m)
Sails
Mainsail area142.22 sq ft (13.213 m2)
Jib/genoa area207.00 sq ft (19.231 m2)
Total sail area349.22 sq ft (32.444 m2)
Racing
PHRF210 (average)

The Cal 27 is an American sailboat, that was designed by William Lapworth and first built in 1971.[1][2][3][4]

Production

The boat was built by Jensen Marine in the United States , who completed 306 examples between 1971 and 1974. It is now out of production.[1][4][5]

The Cal 27 design was replaced in the company line by the Cal 2-27 in 1974.[1][4]

Design

The Cal 27 is a small recreational keelboat, built predominantly of fiberglass, with wood trim. It has a masthead sloop rig, an internally-mounted spade-type rudder and a fixed fin keel. It displaces 5,400 lb (2,449 kg) and carries 2,725 lb (1,236 kg) of ballast.[1][2][4]

The boat has a draft of 4.50 ft (1.37 m) with the standard keel.[1][4]

The boat has a PHRF racing average handicap of 210 with a high of 210 and low of 210. It has a hull speed of 6.33 kn (11.72 km/h).[2][4]

A version was also built with a 3 ft (0.91 m) taller mast.[1][4][6]

See also

Related development

Similar sailboats

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 Browning, Randy (2017). "Cal 27 sailboat specifications and details". sailboatdata.com. https://sailboatdata.com/sailboat/cal-27. Retrieved 24 April 2017. 
  2. 2.0 2.1 2.2 InterVisionSoft LLC (2017). "Sailboat Specifications for Cal 27". Sailing Joy. http://www.sailingjoy.com/sailboat_specs/sailboat_specs/view/724/cal-27. Retrieved 24 April 2017. 
  3. Browning, Randy (2017). "C. William Lapworth 1919-2006". sailboatdata.com. https://sailboatdata.com/designer/lapworth-c-william. Retrieved 24 April 2017. 
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 Sea Time Tech, LLC (2022). "Cal 27". sailboat.guide. https://sailboat.guide/cal/27. 
  5. McArthur, Bruce (2022). "Jensen Marine/Cal Boats". sailboatdata.com. https://sailboatdata.com/builder/jensen-marinecal-boats. 
  6. InterVisionSoft LLC (2017). "Sailboat Specifications for Cal 27 TM". Sailing Joy. http://www.sailingjoy.com/sailboat_specs/sailboat_specs/view/987/cal-27-tm. Retrieved 24 April 2017. 

External links