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J70 USA 495 RED
Dry Sailed Only Boat Lift Indoor Winter Storage Fresh Water Sailed Turnkey 100% Ready to Race and Win
Hull #495: New in 2014
North Sails: New in 2019 1 Year of Use: XCS-2 Main Sail J-6 High Clew Jib AP-1 Airx Asymmetric Spinnaker (Red) Practice Sails: New in 2014 North Sails Main, Jib, 2 Spinnakers (White)
Sail 22 Upgrades: Soft Deck in Grey and Red New in 2020 B&G Electronics Through Hull Fitted Furling Line Upgrades Wear Plates Third Hand with Keepers Lifting Straps (3)
Additional Upgrades: Spinnaker Cockpit Launch Bag ATN Spinnaker Dousing Sock Harkin Jib Cover New in 2022 Full Set of Covers Mast, Boom, Spreaders, Tiller, Rudder Top and Bottom Harkin Boat Covers Cabin Spray Cover Harkin - New in 2022 Keel Crane Tiller Extension - New in 2022
Equipment: Trailer: Triad Trailer New with Boat Keel Crane Mount Sail 22 Travel Mast Bracket Spare Tire New in 2022 Large Storage Box Motor: Torqueedo Travel Motor New with Boat in 2014 New Motor from 2022 Available for Cost Spare Battery Available
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)
Spinnaker (asym.) area: 491 sq.ft./45 m²
More than 1100 delivered as of 2016.
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