VIPER Description & Technical Specification
Length Overall: 21’1″
BEAM: 8’2″
Displacement: 749 lbs
Ballast: Lead keel bulb 271 lbs
DRAFT: 1’10″ keel up, 4’6″ with keel fully extended (keel bolted full-down while sailing per class rules)
Sail Area: 252 sq/ft. (main and jib) Spinnaker 425 sq/ft.
Crew: Two to four, with a typical all-up weight of 500-600 lbs. Most boats sail with three.
Please contact us for more information regarding the Viper 640, or to arrange a test sail.

