Seller's Description
2012 Windrider 17 Trimaran in good condition, ready to sail. Boat and trailer are titled and registered in Virginia, and the boat registration expires in March of 2025. This is a good family boat, and can handle up to 800 lbs of passengers and gear. The pictures are of a boat I previously owned that is set up similarly. I’ll add pics of my boat in the next day or so, but white Windriders all look about the same.
Windrider 17’s are highly adaptable to each owner’s taste. There are many youtube videos on different accessories and mods that others have done. Anything that I’ve changed or added can be easily removed, but these are the ones on my boat:
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Sail Slides
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Topping Lift
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Extended main halyard
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Main halyard pivoting cam cleat
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Tiller Extension
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Benches around cockpit
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Benches on outer section of trampolines
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Lockable cockpit covers
Equipment: Motor Mount
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Torqeedo 1103 Electric Motor
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Brand New Reacher Sail with roller furling (similar to spinnaker)
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Carbon Fiber bowsprit for reacher
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Main and roller furling jib in good condition
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Trampolines in good condition
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Windshield for front cockpit
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Aluminum trailer in good condition
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Built in bilge pump
Specs
- Designers
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- Builders
- ?
- Associations
- ?
- # Built
- ?
- Hull
- Monohull
- Keel
- ?
- Rudder
- ?
- Construction
- ?
Dimensions
- Length Overall
- 16′ 11″ / 5.2 m
- Waterline Length
- ?
- Beam
- 12′ 11″ / 4 m
- Draft
- 0′ 11″ / 0.3 m
- Displacement
- ?
- Ballast
- ?
Rig and Sails
- Type
- ?
- Reported Sail Area
- ?
- 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
- 0
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
- ?
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
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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
- ?
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
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