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Viper 640 One Design Parts


Jib Halyard Fine-Tune For cranking up the luff tension in fresh wind, the Viper's jib halyard is deflected through a 8:1 fine-tune. The double-ended system uses Micro Carbo Cams with X-Treme Angle fairleads, making it easy for the forward crew to adjust without leaving the rail
Jib Leads The 2:1 ratchet-controlled jib sheet runs through Carbo T2s on the clew to low-profile pinstop cars for trim angle adjustments. In addition to moving the cars forward to round the foot of the jib, Viper sailors can also improve light-air performance by removing the top batten to keep the leech open.
Gnav strut The Viper cockpit is very clean with a gnav in place of a traditional vang. The new 8:1 Harken gnav replaces the slider system with a captive bearing car designed for compression loads. The Harken HC8418 utility car removes most of the friction to make the system more powerful, reducing the need for a very high purchase, and making it far easier to use under load.
Boat Specifications
Length Overall: 21ft 4 in (6.40 m)
Length Waterline: 19 ft 1 in (5.7 m)
Beam: 8 ft (2.4 m)
J: 8.3
JSP: 14.3
I: 21.8
ISP: 23
P: 25.6
E: 10.0<

Displacement:749 lb (340 kg)
Ballast
Lifting Bulb Keel: 271 lb (123 kg

Sail Area
Main/Jib:
252 sq. ft (23.4 sq. m)
Spinnaker:425 sq. ft (39.4 sq. m)

Designer: Brian Bennett, Kiwi Yacht Design
Builder: Rondar Boats



Harken Eyestrap 43MM
Harken Eyestrap 43MM

Harken Standard Cam-Matic® Cleat - 150
Harken Standard Cam-Matic® Cleat - 150

Harken Standard Cam-Matic® Cleat - 150
#HAR150 List Price $36.35Only $31.99



Harken 22 mm Through-Deck Block
Harken 22 mm Through-Deck Block

#HAR242 List Price $29.65Only $26.09



Harken 29 mm Block - Swivel
Harken 29 mm Block - Swivel

Harken 29 mm Block - Swivel
#HAR340 List Price $24.95Only $21.96



Harken 29 mm Double Block -  Swivel
Harken 29 mm Double Block - Swivel

Harken 29 mm Double Block - Swivel
#HAR342 List Price $45.25Only $39.82



Harken 29 mm Double Block - Swivel Becket
Harken 29 mm Double Block - Swivel Becket

Harken 29 mm Double Block - Swivel Becket
#HAR343 List Price $49.10Only $43.21



Harken 29 mm Block
Harken 29 mm Block

Harken 29 mm Block
#HAR348 List Price $14.75Only $12.98



Harken 29mm Carbo Stand-up Block / fixed
Harken 29mm Carbo Stand-up Block / fixed

Harken 29mm Carbo Stand-up Block / fixed
#R349harken List Price $16.70Only $14.70



Harken 29 mm Double Traveler Block
Harken 29 mm Double Traveler Block

Harken 29 mm Double Traveler Block
#HAR353 List Price $31.70Only $27.90



Harken 29 mm Clew Block
Harken 29 mm Clew Block

Harken 29 mm Clew Block
#HAR371 List Price $31.35Only $27.59



Harken 40 mm T2 Soft-Attach Block
Harken 40 mm T2 Soft-Attach Block

Harken 40 mm T2 Soft-Attach Block
#HAR2149 List Price $38.75Only $34.10



Harken 40 mm Fiddle Block - Swivel Becket
Harken 40 mm Fiddle Block - Swivel Becket

Harken 40 mm Fiddle Block - Swivel Becket
#HAR2656 List Price $49.65Only $43.69



Harken 22 mm Slug-Mount Track
Harken 22 mm Slug-Mount Track

Harken 22 mm Slug-Mount Track
#HAR3807 List Price $103.15Only $90.77



Harken 22 mm Track Endstop Kit - Round Mast Groove
Harken 22 mm Track Endstop Kit - Round Mast Groove

Harken 22 mm Track Endstop Kit - Round Mast Groove
#HAR3808 List Price $45.80Only $40.30



Harken 725 mm Storage Track
Harken 725 mm Storage Track