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Fast stable and durable Jim Brown designed trimaran. Former dealer demo boat in excellent condition with all the options. Carbon Fiber bowsprit and turbo reacher/drifter kit, motor mount (2hp is lots), fully battened main and roller furling jib with custom jib sock (jib lives on the boat when mast is up), rotating aluminum wing mast. Custom Shorelander trailer in like new condition. All up weight is 400lb and is easily towed by a regular car and setup by one person. Boat was used at Boat shows and only sailed lightly. Kept this boat when Windrider dropped their dealer channel and moved it to the cottage but it’s only been sailed about a half dozen times in the past 6 years (too many toys) so time to let someone else enjoy it. You won’t find one in better condition and includes all my dealer spare parts. Older colored boats tended to fade, the white you just have to clean periodically. The Windrider 17 is a great learn to sail boat, provides a good turn of speed in this configuration for the experienced sailor and has lots of enthusiasts worldwide. Cockpit room for 2 and trampolines for a couple more. Pedal Steering and all control lines lead to aft cockpit. Lots of Youtube Videos of Windrider adventures. Can deliver and/or facilitate.
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)
Beam on trailer: 8.5’
Trimaran w/fixed keel.
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