2021 NACRA 570 Sport: Can’t wait until 2022 to get your 570? Just arrived in the States from the factory in the Netherlands in September and used only once. You save the wait time and shipping costs (\(\)$$). Standard Equipment: 5 Year Limited warranty (began 9/2021) Harken Main and Jib Blocks Adjustable Diamond Spreaders Adjustable Kick-up rudders Captive Mast Ball System Black mesh trampoline Adjustable tiller extension Coated shrouds Harken Traveler system Mylar Main/Dacron Jib white Sail bags for all
Options Include: Sport Spinnaker Kit blue nylon lines, bowsprit, snuffer Complete Harken furler system - jib Full boat cover Eurotrax beach wheels Rudder covers Double trapeze system 1:8 Cunningham system Brand new 20 Metal Craft powder-coated trailer w/mast support & cradle/LED lights/rear rollers/spare tire/tie down straps (retail @ $2285) 2 new/never used trapeze harnesses: Forward WIP size S/M & size L/XL
This can be all yours for $21,000!!!! Have all invoices for reference. Can arrange options on delivery. Currently located in Albuquerque.
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 √LWLA 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)
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