How the Viper Compares

Performance and cost comparison of keelboat classes

Viper 640 VX One RS 21 J/70

Size

LOA 21′ 11″ 6.40 m 18′ 11″ 5.79 m 20′ 11″ 6.34 m 22′ 8″ 6.93 m
Beam 8′ 2″ 2.50 m 7′ 2″ 2.19 m 7′ 3″ 2.20 m 7′ 4″ 2.25 m

Weight

Displacement 749 lb 340 kg 573 lb 260 kg 1433 lb 650 kg 1752 lb 795 kg

Sail Area

Main & Jib (sq) 252 ft 23.44 m 215 ft 19.97 m 265 ft 24.6 m 280 ft 26.0 m
Gennaker (sq) 425 ft 39.54 m 280 ft 26.0 m 430 ft 40.0 m 484 ft 45.0 m

Speed

IRC Rating 1.010 1.012 0.949 0.971
PY Number 894
PHRF 102 105  114 117
Crew 2-4 2-3 3-4 4-5

Cost

Cost $32,950 £19,950 $32,950
   ex-tax / VAT
Freight (US) included $1,625
Trailer included $2,250 included
Sails $4,797 $3,920 None
Harken fitout included $1,975
Top Cover
Total (est) $37,747 £30,127 $37,555 £29,975 $42,720 $50,000 £40,720
Intro price

 

This information is accurate to the best of our knowledge and may not reflect recent pricing changes.

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