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Hobie Trifoiler 19’, 1994 I have owned this Hobie Trifoiler for about 15 years and have really enjoyed the sensation of flying that comes with every time it lifts onto it’s foils and starts screaming along at 35-40 mph. This boat is FAST! I hate to see it go but I am not making the time to take her out much anymore and I would like her to go to someone who will appreciate and use her.
Like new Whirlwind sails in Orange and blue. The original sails come with it as well, they are worn but still usable. The new sails have only been used a handful of times and are in excellent shape. Boat is approximately 18’ wide when assembled. Draft is 36” when the foils are down and boat is in the water and not up on the foils. Trailer is aluminum and in very good condition. Boat is in overall excellent condition.
Sarasota, FL
or phone 941.374.6607
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64)2/3
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
One of the earliest (if not THE earliest) production ‘foilers’. Developed by Greg Ketterman and later sold by Hobie Cat.
Trimaran with foils. Tandem ‘windsurfer’ type sails.
Originally the KETTERMAN TRIFOILER (1992) from TriFoiler Inc..
This listing is presented by SailingTexas.com. Visit their website for more information or to contact the seller.
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