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Sailboat Specifications

Neptune 16

Fractional Sloop · Keel/Cbrd.

Designed by C. William Lapworth/Capital Yachts Inc. · Built by Capital Yachts Inc. · First built 1981

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LOA 15.75 ft  ·  Beam 6.17 ft  ·  Displacement 900.00 lb  ·  Sail Area 115.00 ft²  ·  Fractional Sloop  ·  Keel/Cbrd.
About the Neptune 16 Sailboat

A compact and accessible daysailer, the Neptune 16 is designed with simplicity and ease of use in mind, making it a natural fit for beginner sailors and those seeking relaxed coastal sailing experiences. Built to handle sheltered waters, lakes, and calm coastal environments, this small keelboat offers a stable and forgiving platform for learning the fundamentals of sailing or enjoying leisurely outings without the complexity of a larger vessel. While detailed specifications for the Neptune 16 are limited, its modest size suggests a boat that prioritizes approachability over performance ambition. Boats in this class typically reward sailors who value ease of trailering, low maintenance, and straightforward rigging — qualities that make weekend sailing genuinely enjoyable rather than a logistical challenge. The Neptune 16 may appeal particularly to families, newcomers to the sport, or experienced sailors looking for a simple, low-cost second boat. Though it lacks the offshore capability or racing pedigree of larger designs, its charm lies in its unpretentious character and the accessible entry point it offers into keelboat sailing.

Market Price Estimate Beta
Small sample size. This estimate is based on fewer than 5 listings and may not be representative of the true market. Use with caution.
$2,700 – $2,700
typical asking price
Median $2,700  ·  2 listings used
All listings
$2,700 – $2,700 2
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Dimensions & Specifications
LOA (Length Overall) 15.75 ft / 4.80 m
LWL (Waterline Length) 13.50 ft / 4.11 m
Beam 6.17 ft / 1.88 m
Max Draft 4.00 ft / 1.22 m
Min Draft 0.83 ft / 0.25 m
Displacement 900.00 lb / 408 kg
Ballast 200.00 lb / 91 kg
Sail Area (Reported) 115.00 ft² / 10.68 m²
Design & Construction
Hull Type Keel/Cbrd.
Rigging Type Fractional Sloop
Construction FG
Designer C. William Lapworth/Capital Yachts Inc.
Builder Capital Yachts Inc.
First Built 1981
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Frequently Asked Questions

What is the Neptune 16's sail area to displacement ratio?

The Neptune 16 has a Sail Area to Displacement ratio (SA/D) of 19.77. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Neptune 16's comfort ratio?

The Neptune 16 has a Ted Brewer Comfort Ratio of 8.68. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Neptune 16 safe for offshore sailing?

The Neptune 16 has a Capsize Screening Formula value of 2.56. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Neptune 16?

The theoretical hull speed of the Neptune 16 is 4.92 knots, calculated from its waterline length.

How much does a Neptune 16 weigh?

The Neptune 16 has a displacement of 900.00 lb and a length overall (LOA) of 15.75 ft.

How much does a used Neptune 16 cost?

Based on 2 recent market listings, used Neptune 16 sailboats typically sell for between $2,700 and $2,700, with a median asking price of $2,700. Price varies significantly based on year, condition, location, and included equipment.

Who designed the Neptune 16?

The Neptune 16 was designed by C. William Lapworth/Capital Yachts Inc., first built in 1981.