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Sailboat Specifications

Mirror Offshore Mk Ii

Masthead Sloop · Triple Keel

Designed by E. G. Van De Stadt · Built by Gdb Marine Ltd./Elizabethan Marine · First built 1980

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LOA 18.86 ft  ·  Beam 6.73 ft  ·  Displacement 1,700.00 lb  ·  Sail Area 152.00 ft²  ·  Masthead Sloop  ·  Triple Keel
About the Mirror Offshore Mk Ii Sailboat

Originally developed as an evolution of the popular Mirror dinghy series, this offshore variant represents an interesting departure from the traditional small-boat Mirror design philosophy. While detailed specifications remain scarce, the Mk II designation suggests refinements over an earlier offshore model, likely incorporating lessons learned from initial sea trials and owner feedback. The Mirror Offshore concept aimed to translate the accessibility and simplicity that made the original Mirror dinghy famous into a more substantial sailing platform capable of coastal and light offshore work. This approach typically results in boats that maintain straightforward rigging and handling characteristics while offering the stability and seaworthiness needed for more challenging conditions. Given the Mirror brand's reputation for practical, no-nonsense designs, the Offshore Mk II likely emphasizes ease of maintenance and reliable performance over cutting-edge racing features. The boat would appeal to sailors seeking a honest, workmanlike vessel for coastal exploration and day sailing, particularly those who appreciate the Mirror lineage of sensible design and proven construction methods. Without comprehensive specifications available, prospective buyers should seek out existing owners and detailed surveys to fully evaluate this boat's capabilities and condition, as individual examples may vary significantly in equipment and maintenance standards.

Dimensions & Specifications
LOA (Length Overall) 18.86 ft / 5.75 m
LWL (Waterline Length) 15.75 ft / 4.80 m
Beam 6.73 ft / 2.05 m
Max Draft 1.90 ft / 0.58 m
Displacement 1,700.00 lb / 771 kg
Ballast 380.00 lb / 172 kg
Sail Area (Reported) 152.00 ft² / 14.12 m²
Design & Construction
Hull Type Triple Keel
Rigging Type Masthead Sloop
Construction FG
Designer E. G. van de Stadt
Builder GDB Marine Ltd./Elizabethan Marine
First Built 1980
Last Built 1982
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Frequently Asked Questions

What is the Mirror Offshore Mk Ii's sail area to displacement ratio?

The Mirror Offshore Mk Ii has a Sail Area to Displacement ratio (SA/D) of 17.11. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Mirror Offshore Mk Ii's comfort ratio?

The Mirror Offshore Mk Ii has a Ted Brewer Comfort Ratio of 12.42. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Mirror Offshore Mk Ii safe for offshore sailing?

The Mirror Offshore Mk Ii has a Capsize Screening Formula value of 2.26. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Mirror Offshore Mk Ii?

The theoretical hull speed of the Mirror Offshore Mk Ii is 5.32 knots, calculated from its waterline length.

How much does a Mirror Offshore Mk Ii weigh?

The Mirror Offshore Mk Ii has a displacement of 1,700.00 lb and a length overall (LOA) of 18.86 ft.

Who designed the Mirror Offshore Mk Ii?

The Mirror Offshore Mk Ii was designed by E. G. Van De Stadt, first built in 1980.