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Nickels Boat Works

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JY15 Sailboat

JY understands the weekend warrior in you. You don’t have the time to tinker with a boat…or train 7 days a week. You want to launch your boat and go be a contender. With the JY15, the boat you buy is the boat you race. And because the JY15 is so fun and easy to sail, finding crew is a breeze.

Look around you right now…your crew could be your husband, wife, girlfriend, boyfriend, children or grandchildren. And boy, will they love our crew friendly curves with gunwales designed for comfortable hiking.

With over 80 active fleets and more than 2000 JY15s nationwide, you’ll never have a problem finding someone to play with.

Self bailing, ergo dynamic cockpit
Kick up rudder and centerboard for easy beaching
An extremely stable 275 lb. hull that allows for a greater range of crew weight
Flared sides provide a comfortable hiking edge
One Design specifications ensure that every boat is the same
A planing hull that you’ll never outgrow

The JY15 sailboat is sold "ready to sail" but add-ons are available such as a trailer or dolly.

Dimensions:

Length: 15'
Beam: 5' 10"
Main: 100 sq. ft.
Jib: 35 sq. ft.
Mast Height: 22′

Optional Add-ons:

Trailer: $1695
Dolly: $511

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Sailboat Guide

JY 15 is a 14 ′ 11 ″ / 4.6 m monohull sailboat designed by Rod Johnstone and built by Nickels Boat Works, Inc. and Hunter Marine starting in 1989.

2 / 2 Middletown, CT, US 1990 JY 15 $50 USD View

Rig and Sails

Auxilary power, accomodations, calculations.

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

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

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.

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 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.

Ballast / Displacement * 100

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.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

D: Displacement of the boat in pounds.
LWL: Waterline length in feet

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.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

D: Displacement of the boat in pounds
LOA: Length overall in feet
Beam: Width of boat at the widest point in feet

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.

CSV = Beam ÷ ³√(D / 64)

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