Seller's Description
Windrider Rave Hydro-foiling Trimaran sailboat. Completely stock other than the motor mount. Seats two people. Boat is in very good shape and everything works. No damage, or areas that need repair. Exterior skin is roto molded, similar to a kayak and then mated to an aluminum internal chassis. Sails are crisp and in very good condition. This Windrider has the factory bow sprit option with hooter/screacher sail that is on a roller furling setup. Jib is self tacking. Foot pedal rudder control. Also has the the joystick for extra pitch control while foiling. Boat uses “wands” to automatically adjust ride height once foiling. Comes with a 2007 2hp Honda outboard. Good condition galvanized road trailer w/bearing buddies is included. This package is complete and needs nothing to go all the way to the lake and then sail fast! Attached video link is actual footage of my boat sailing in approx 7-9 knot range. I’ve sailed the boat in easily twice that. Handles very good in that kind of wind and is absolutely amazing when pushed. The boat will go every bit of 30 knots in my estimation. The manual says the limit is 42 knots. I feel like I’ve gotten pretty close to that. Just turn down wind to slow down! I have the manual for the boat and also the factory manual for the Honda. Boat is located in Redding, Ca.https://www.youtube.com/watch?v=PwhghhHfm60
Specs
- Designer
- Jim Brown/Windrider
- Builder
- Windrider Sailing Trimarans
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- ?
- Rudder
- ?
- Construction
- Roto molded Poly.
Dimensions
- Length Overall
- 17′ 3″ / 5.3 m
- Waterline Length
- ?
- Beam
- 12′ 11″ / 3.9 m
- Draft
- 1′ 6″ / 0.5 m
- Displacement
- 400 lb / 181 kg
- Ballast
- ?
Rig and Sails
- Type
- Cat
- Reported Sail Area
- 96′² / 8.9 m²
- Total Sail Area
- ?
Mainsail
- Sail Area
- ?
- P
- ?
- E
- ?
- Air Draft
- ?
Foresail
- Sail Area
- ?
- I
- ?
- J
- ?
- Forestay Length
- ?
Auxilary Power
- Make
- ?
- Model
- ?
- HP
- ?
- Fuel Type
- ?
- Fuel Capacity
- ?
- Engine Hours
- ?
Accomodations
- Water Capacity
- ?
- Holding Tank Capacity
- ?
- Headroom
- ?
- Cabins
- ?
Calculations
- Hull Speed
- ?
Hull Speed
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.
Formula
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
- Sail Area/Displacement
-
28.3
>20: high performance
Sail Area / Displacement Ratio
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.
Formula
SA/D = SA ÷ (D ÷ 64)2/3
- SA: Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D: Displacement in pounds.
- Ballast/Displacement
- ?
Ballast / Displacement Ratio
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.
Formula
Ballast / Displacement * 100
- Displacement/Length
- ?
Displacement / Length Ratio
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.
Formula
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
- Comfort Ratio
- ?
Comfort Ratio
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.
Formula
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
- D: Displacement of the boat in pounds
- LWL: Waterline length in feet
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
- Capsize Screening
-
7.0
>2.0: better suited for coastal cruising
Capsize Screening Formula
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.
Formula
CSV = Beam ÷ ³√(D / 64)
- Beam: Width of boat at the widest point in feet
- D: Displacement of the boat in pounds
Notes
Beam on trailer: 8.5’
Trimaran w/fixed keel.
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