| Length: 6.40m (21ft 0ins) |
| Width: 2.50m (8ft 2ins) |
| Weight: |
| Country: United Kingdom |
| Keel Type: |
| Rig Type: Bermuda Sloop Fractional (with jib) |
| Crew: 2-3 |
| Trapeze: none |
| Sail Area: 23.4 sq. m |
| Spinnaker Type: Symmetric spinnaker |
| Spinnaker Area: 39.5 sq.m |
| Designer(s): |
| Design Year: |
| Builder: |
| Boats Built: |
Designer Brian Bennett
 
| Class Association website: http://www.viper640.org |
 
 
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