I had not heard of these before today.
Always trust the Kiwi's to come with something cool.

Viper 640

http://www.viper640.org/

Length Overall: 6.40 m 21' 1"
Length Waterline: 19' 1'
Beam: 8' 2"
Displacement: 335 kilo 737 lbs
Ballast: Lifting Bulb Keel. 125 kilo 275lbs (including 220 lb bulb)

Draft 4' 6" with keel down. 1' 10' with keel up.
(keel is bolted down while sailing per class rules)

Sail Area

Main/Jib 252 sq ft
Spinnaker 425 sq ft

Mast Carbon
Handicap PHRF 111 US Sailing Portsmouth Yardstick 70.4
Designer Brian Bennett, Kiwi Yacht Design
Builder Rondar Race Boats
Crew 3 or 2. Typical competitive crew is three people and a weight
of 500 to 580lbs