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Sailboat Specifications

Catalina 18 Mkii

Masthead Sloop · Fin W/Spade Rudder

Designed by Frank Butler · First built 2004

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LOA 18.08 ft  ·  Beam 7.75 ft  ·  Displacement 1,400 lb  ·  Sail Area 155 ft²  ·  Masthead Sloop  ·  Fin W/Spade Rudder
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Dimensions & Specifications
LOA (Length Overall) 18.08 ft / 5.51 m
LWL (Waterline Length) 15.92 ft / 4.85 m
Beam 7.75 ft / 2.36 m
Max Draft 2.75 ft / 0.84 m
Displacement 1,400 lb / 635 kg
Ballast 525 lb / 238 kg
Sail Area (Reported) 155 ft² / 14.40 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Masthead Sloop
Construction FG
Designer Frank Butler
First Built 2004
Last Built 2015
Number Built 1500
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Frequently Asked Questions

What is the Catalina 18 Mkii's sail area to displacement ratio?

The Catalina 18 Mkii has a Sail Area to Displacement ratio (SA/D) of 19.8. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Catalina 18 Mkii's comfort ratio?

The Catalina 18 Mkii has a Ted Brewer Comfort Ratio of 8.48. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Catalina 18 Mkii safe for offshore sailing?

The Catalina 18 Mkii has a Capsize Screening Formula value of 2.77. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Catalina 18 Mkii?

The theoretical hull speed of the Catalina 18 Mkii is 5.35 kn knots, calculated from its waterline length.

How much does a Catalina 18 Mkii weigh?

The Catalina 18 Mkii has a displacement of 1,400 lb and a length overall (LOA) of 18.08 ft.

Who designed the Catalina 18 Mkii?

The Catalina 18 Mkii was designed by Frank Butler, first built in 2004.

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