Seller's Description
2015 Windrider 17 and 2018 3.5 HP Tohatsu outboard for sale for $9,900.
The Windrider 17 Jim Brown-designed trimaran provides fast & stable sailing whether single-handed or with the family. This unique boat is easily trailerable by virtually all vehicles, & is designed for quick and easy setup & launch for expedition sailing, racing or an afternoon sail around the lake with a crowd onboard. Foot pedal steering from either cockpit allows hands-free sailing while facing forward with main and jib sheets close to hand. Constructed from durable rotation molded polyethylene & requires minimal maintenance. For more information visit Windrider.com
Equipment: Standard & optional features include: Twin cockpits, each with adjustable seats for one adult aft & one adult & child forward. Additional passengers may sit on the trampolines & tramp seat This boat has been modified to allow all sail & steering control from either the aft cockpit PLUS optional foot-pedal steering from the forward cockpit PLUS factory option hand steering using a pull rope from either cockpit Fully-battened main sail on a rotating 20 ft aluminum mast, including optional sail slugs, track stops, fairing block & reefing fittings for easier rigging & handling while underway Roller-furling jib & factory option Sunbrella sail cover Neil Pryde sails main: 96 sq.ft. & furling jib: 43 sq.ft. Main sail can be controlled with boom-end or factory option mid-boom sheeting, equipped with optional lazy jacks, topping lift & custom Sunbrella mainsail cover Factory option mast raising system Factory option motor mount Factory option windshield for forward cockpit Telescoping hull beams for easy setup & trailering Trampolines between the hull beams for relaxing or extra passengers Factory aluminum trailer with mast supports & tie-downs, Bearing Buddies & optional spare tire Dual polyethylene cockpit covers with optional locks as well as factory option nylon soft covers Factory option complete storage system Factory installed Whale bilge pump 2018 Tohatsu 3.5 HP gasoline engine with forward & neutral gears, aluminum prop & integral fuel tank
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
- 55′ 9″ / 17 m
- Beam
- 27′ 10″ / 8.5 m
- Draft
- 4′ 11″ / 1.5 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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