Viper 640

Viper 640
Development
DesignerBrian Bennett
LocationUnited States
Year1996
No. built400
Builder(s)Viper Boats
Rondar Raceboats
NameViper 640
Boat
Displacement750 lb (340 kg)
Draft4.49 ft (1.37 m) daggerboard down
Hull
TypeMonohull
ConstructionFiberglass
LOA21.08 ft (6.43 m)
LWL19.08 ft (5.82 m)
Beam8.17 ft (2.49 m)
Engine typeOutboard motor
Hull appendages
Keel/board typelifting keel with weighted bulb
Ballast262 lb (119 kg)
Rudder(s)transom-mounted rudder
Rig
Rig typeBermuda rig
I foretriangle height21.98 ft (6.70 m)
J foretriangle base7.48 ft (2.28 m)
P mainsail luff25.62 ft (7.81 m)
E mainsail foot10.07 ft (3.07 m)
Sails
SailplanFractional rigged sloop
Mainsail area129.00 sq ft (11.984 m2)
Jib/genoa area82.21 sq ft (7.638 m2)
Spinnaker area425 sq ft (39.5 m2)
Total sail area211.20 sq ft (19.621 m2)
Racing
PHRF99 (average)

The Viper 640 is an American trailerable sailboat, that was designed by Brian Bennett for racing and first built in 1996.[1][2][3]

The Viper 640 is an accepted World Sailing class boat[4] and the official one-design boat of the Gulf Yachting Association for its Capdevielle Series.[5]

  1. ^ Browning, Randy (2018). "Viper 640 sailboat specifications and details". sailboatdata.com. Archived from the original on 15 April 2021. Retrieved 30 May 2018.
  2. ^ Browning, Randy (2018). "Brian Bennett". sailboatdata.com. Archived from the original on 15 April 2021. Retrieved 30 May 2018.
  3. ^ Sea Time Tech, LLC (2022). "Viper 640". sailboat.guide. Archived from the original on 25 March 2022. Retrieved 25 March 2022.
  4. ^ Rondar Raceboats (2018). "Rondar Viper 640 - Specification - Now a World Sailing Class!". www.rondarboats.com. Archived from the original on 4 December 2020. Retrieved 30 May 2018.
  5. ^ "GYA Selects Viper 640 As New Capdevielle Boat!!". Viper640.org. 2015. Archived from the original on 6 February 2020. Retrieved 9 September 2015.