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Sailboat Specifications

J/40

Masthead Sloop · Fin W/Spade Rudder

Designed by Rod Johnstone · First built 1984

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LOA 40.92 ft  ·  Beam 13.17 ft  ·  Displacement 18,000 lb  ·  Sail Area 780 ft²  ·  Masthead Sloop  ·  Fin W/Spade Rudder
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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.
$68,500 – $68,500
typical asking price
Median $68,500  ·  1 listing used
All listings
$68,500 – $68,500 1
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Dimensions & Specifications
LOA (Length Overall) 40.92 ft / 12.47 m
LWL (Waterline Length) 35.50 ft / 10.82 m
Beam 13.17 ft / 4.01 m
Max Draft 6.67 ft / 2.03 m
Displacement 18,000 lb / 8,165 kg
Ballast 7,500 lb / 3,402 kg
Sail Area (Reported) 780 ft² / 72.46 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Rod Johnstone
First Built 1984
Last Built 1994
Number Built 86
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Frequently Asked Questions

What is the J/40's sail area to displacement ratio?

The J/40 has a Sail Area to Displacement ratio (SA/D) of 17.09. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the J/40's comfort ratio?

The J/40 has a Ted Brewer Comfort Ratio of 33.55. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the J/40 safe for offshore sailing?

The J/40 has a Capsize Screening Formula value of 1.6. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the J/40?

The theoretical hull speed of the J/40 is 9.62 knots, calculated from its waterline length.

How much does a J/40 weigh?

The J/40 has a displacement of 18,000 lb and a length overall (LOA) of 40.92 ft.

How much does a used J/40 cost?

Based on 1 recent market listings, used J/40 sailboats typically sell for between $68,500 and $68,500, with a median asking price of $68,500. Price varies significantly based on year, condition, location, and included equipment.

Who designed the J/40?

The J/40 was designed by Rod Johnstone, first built in 1984.