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Nacra 20

From Wikipedia, the free encyclopedia
Sailboat class

Nacra 20
Nacra F20 Carbon
Development
DesignerGino Morrelli andPete Melvin
LocationNetherlands
Year1998
Builder(s)Performance Catamarans
Nacra Sailing
RoleOne-designracer
NameNacra 20
Boat
CrewTwo
Displacement390 lb (177 kg)
Draft3.18 ft (0.97 m) with thedaggerboards down
Hull
Typecatamaran
ConstructionGlassfibre foam sandwich
LOA20.00 ft (6.10 m)
Beam8.50 ft (2.59 m)
Hull appendages
Keel/board typetwin daggerboards
Ruddertwin transom-mountedrudders
Rig
Rig typeBermuda rig
Sails
SailplanFractional riggedsloop
Mainsail area206 sq ft (19.1 m2)
Jib/genoa area50 sq ft (4.6 m2)
Spinnaker area269 sq ft (25.0 m2)
Total sail area256 sq ft (23.8 m2)

TheNacra 20 is acatamaransailing dinghy that was designed byGino Morrelli andPete Melvin as aone-designracer and first built in 1998.[1][2]

The design is a development of theNacra F18 Infusion, using the same rudders, mast, inter-hull beams and other small parts and fittings, but with new, longer hulls.[3]

The design was originally marketed by the manufacturer as theNacra Inter 20 and later as the Nacra 20, more recently it has been developed into theNacra F20 Carbon and thehydrofoil-equippedNacra F20 Carbon FCS.[1][3][4]

The Nacra F20 Carbon is a recognizedWorld Sailing international competition class.[5]

Production

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The design was initially built byPerformance Catamarans inSanta Ana, California,United States, but that company is out of business. Since 2007 the design has been built byNacra Sailing inScheveningen,Netherlands, and it remains in production as the Nacra F20 Carbon and Nacra F20 Carbon FCS models.[1][3][6][7]

Design

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The Nacra 20 is a racing catamaransailboat. All models havefractionalsloop rigs with rotating masts, verticaltransoms, transom-hungrudders controlled by atiller and retractabledaggerboards. They are normally sailed by a crew of two and the design is equipped with twotrapezes for balance.[1][3]

Variants

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Nacra 20
This model was introduced in 1998 as the Nacra Inter 20 and later called the Nacra 20. Production of this model ended after three years, in 2001. The hulls are built from afibreglass foam sandwich. It has a length overall of 20.00 ft (6.1 m), a beam of 8.50 ft (2.6 m) and displaces 390 lb (177 kg). The hulls haveplumb stems and adraft of 3.18 ft (0.97 m) with the daggerboards extended and 0.42 ft (0.13 m) with them retracted, allowingbeaching or ground transportation on atrailer.[1][8]
Nacra F20 Carbon
The hulls on this model are built predominantly from acarbon fibre foam sandwich withepoxy resin. It has a length overall of 20.25 ft (6.2 m), a beam of 10.42 ft (3.2 m) and displaces 401 lb (182 kg). The hulls have reverseraked stems and the rudders are a "kick-up" design. The rudders and daggerboards are made frompre-preg carbon fibre. The spinnaker is made fromnylon.[3][4]
Nacra F20 Carbon FCS (Flight Control System)
Thissailing hydrofoil model commenced production in 2014. It shares most of its parts with the Nacra F20 Carbon, including hulls built predominantly from a carbon fibre foam sandwich with epoxy resin. It has a length overall of 20.25 ft (6.2 m), a beam of 10.42 ft (3.2 m) and displaces 445 lb (202 kg). The hulls have reverse raked stems. The pre-preg carbon fibre hydrofoil daggerboards and rudders are unique to this model. The daggerboards are L-shaped and the rudders T-shaped. The spinnaker is made frompolyester.[3][4][9]

Operational history

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In a 2012 review of the Nacra 20 Carbon inSail magazine, reviewer Jeremy Evans wrote, "the Nacra 20 Carbon is a spectacular new one-design that is very light—20 pounds lighter than the smaller Formula 18—very stiff and very powerful, with its all-carbon wave-piercing hulls and a superb carbon/Kevlar mainsail ... Sailing in a light to moderate breeze, I found the boat to be stable, predictable and effortlessly quick .. All in all, this is a beautiful boat capable of blistering speed and a truly thrilling ride in a wide range of conditions."[10]

See also

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References

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  1. ^abcdeMcArthur, Bruce (2020)."Nacra 20 sailboat".sailboatdata.com.Archived from the original on 27 July 2020. Retrieved27 July 2020.
  2. ^McArthur, Bruce (2020)."Morrelli & Melvin".sailboatdata.com.Archived from the original on 27 July 2020. Retrieved27 July 2020.
  3. ^abcdefNacra Sailing (2019)."Nacra F20 Carbon".nacrasailing.com.Archived from the original on 27 July 2020. Retrieved27 July 2020.
  4. ^abcMcArthur, Bruce (2020)."Nacra F20 Carbon sailboat".sailboatdata.com.Archived from the original on 29 July 2020. Retrieved29 June 2020.
  5. ^World Sailing (2020)."Nacra F20 Carbon".sailing.org.Archived from the original on 27 July 2020. Retrieved15 July 2020.
  6. ^McArthur, Bruce (2020)."Performance Catamarans Inc".sailboatdata.com.Archived from the original on 27 July 2020. Retrieved27 July 2020.
  7. ^McArthur, Bruce (2020)."NACRA Catamarans".sailboatdata.com.Archived from the original on 27 July 2020. Retrieved27 July 2020.
  8. ^"Nacra Inter 20".Boat-Specs.com. 2019.Archived from the original on 27 July 2020. Retrieved27 June 2020.
  9. ^"Nacra 20 FCS".Boat-Specs.com. 2019.Archived from the original on 27 July 2020. Retrieved27 June 2020.
  10. ^Evans, Jeremy (2 August 2017)."Nacra 20 Carbon".Sail magazine.Archived from the original on 27 July 2020. Retrieved27 July 2020.

External links

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