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Sailboat Specifications

Snapdragon 27 Mk Ii

Masthead Sloop · Twin Keel

Designed by Thames Marine · Built by Thames Marine · First built 1974

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LOA 27.18 ft  ·  Beam 8.50 ft  ·  Displacement 6,162.00 lb  ·  Sail Area 295.00 ft²  ·  Masthead Sloop  ·  Twin Keel
About the Snapdragon 27 Mk Ii Sailboat

A compact British cruiser with a loyal following, the Snapdragon 27 Mk II represents the kind of practical, no-nonsense sailing that defined affordable family cruising in the UK during its era. Produced by Thames Marine, the Snapdragon range earned a strong reputation for building sturdy, seaworthy fiberglass boats accessible to everyday sailors, and the 27 Mk II carries that tradition forward with a design well-suited to coastal and inshore cruising. With detailed specifications limited in the historical record, much of what defines this boat comes from owner accounts and its broader class reputation. Sailors familiar with the Snapdragon line tend to praise its reliable handling characteristics and manageable size, making it an approachable choice for short-handed sailing or those stepping up to a larger cruiser. The Mk II designation suggests refinements over the original model, likely addressing ergonomics or performance based on real-world feedback. For buyers seeking an affordable entry point into British cruising heritage, the Snapdragon 27 Mk II offers charm, practicality, and a modest but enthusiastic owner community worth tapping into before purchase.

Dimensions & Specifications
LOA (Length Overall) 27.18 ft / 8.28 m
LWL (Waterline Length) 22.75 ft / 6.93 m
Beam 8.50 ft / 2.59 m
Max Draft 2.75 ft / 0.84 m
Displacement 6,162.00 lb / 2,795 kg
Ballast 2,200.00 lb / 998 kg
Sail Area (Reported) 295.00 ft² / 27.41 m²
Design & Construction
Hull Type Twin Keel
Rigging Type Masthead Sloop
Construction FG
Designer Thames Marine
Builder Thames Marine
First Built 1974
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Frequently Asked Questions

What is the Snapdragon 27 Mk Ii's sail area to displacement ratio?

The Snapdragon 27 Mk Ii has a Sail Area to Displacement ratio (SA/D) of 14.09. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Snapdragon 27 Mk Ii's comfort ratio?

The Snapdragon 27 Mk Ii has a Ted Brewer Comfort Ratio of 22.86. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Snapdragon 27 Mk Ii safe for offshore sailing?

The Snapdragon 27 Mk Ii has a Capsize Screening Formula value of 1.86. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Snapdragon 27 Mk Ii?

The theoretical hull speed of the Snapdragon 27 Mk Ii is 6.39 knots, calculated from its waterline length.

How much does a Snapdragon 27 Mk Ii weigh?

The Snapdragon 27 Mk Ii has a displacement of 6,162.00 lb and a length overall (LOA) of 27.18 ft.

Who designed the Snapdragon 27 Mk Ii?

The Snapdragon 27 Mk Ii was designed by Thames Marine, first built in 1974.