LOOKING FORWARD TO BUY A NEW VIPER 640: Now available through Mauri Pro Sailing, your Viper 640 specialist.
Read about how to order your Viper 640 (Standard and Special Edition available). Remember the Viper sailing fun factor is off the charts!
About the Viper 640
Rondar Viper 640 Sportboat
The Viper 640 is a 2 to 4 person,
high-performance sports boat. It is FUN, FAST, EASY and AFFORDABLE. The
Viper makes high performance sailing available to everyone. The open
transom bails water instantly, even in extreme conditions. The Viper
is simple, clean, and effective, with no protruding hardware and everything
placed for efficiency. The Viper is light enough to be towed behind a
compact car and simple enough to be rigged and sailed in under a half
hour. The boat can be launched from a hoist or ramp. The 640 is strict
one-design with no changes permitted to the boat as supplied by the class
approved builder. The only option is sails, supplied by class approved
sailmakers and strictly controlled through class rules, which encourages
the development of tuning techniques with the help of the best sailors
Viper 640 a high-performance one-design sport boat.
At 21 ft (6.40 m) and only 749 lb (340 kg) it combines the stiffness of a keelboat with the acceleration and planing abilities of a dinghy. The Viper has a precise and exhilarating feel on the helm, a spacious cockpit for three people, strict one-design class rules and ease of launching by ramp or hoist.
ORDERING YOUR NEW VIPER 640
Mauri Pro Sailing is proud to be a Rondar Sailboats and Viper class dealer.
Now you can order your new Viper 640 here. Mauri Pro Sailing - Viper 640 specialists are ready to help you and go over options and available features.
Viper 640 Gnav strut
The Viper cockpit is very clean with a gnav in place of a traditional vang.
The new 8:1 Harken gnav replaces the slider system with a captive bearing
car designed for compression loads. The Harken HC8418 utility car removes
most of the friction to make the system more powerful, reducing the need
for a very high purchase, and making it far easier to use under load.
Viper 640 Jib
The 2:1 ratchet-controlled jib sheet runs through Carbo T2s on the clew to
low-profile pinstop cars for trim angle adjustments. In addition to moving
the cars forward to round the foot of the jib, Viper sailors can also improve
light-air performance by removing the top batten to keep the leech open.
Viper 640 Jib Halyard Fine-Tune
For cranking up the luff tension in fresh wind, the Viper's jib halyard
is deflected through a 8:1 fine-tune. The double-ended system uses Micro
Carbo Cams with X-Treme Angle fairleads, making it easy for the forward
crew to adjust without leaving the rail.