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Sailboat Specifications

Magnum 85

Fractional Sloop · Centerboard (Trunk)

Built by Magnum Yacht Association · First built 1987

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LOA 27.99 ft  ·  Beam 8.04 ft  ·  Displacement 3,086.00 lb  ·  Sail Area 302.00 ft²  ·  Fractional Sloop  ·  Centerboard (Trunk)
About the Magnum 85 Sailboat

Introduced in 1987 by Magnum Yacht Association, this 28-foot fractional sloop represents a thoughtful approach to coastal cruising with racing potential. The centerboard trunk design offers versatility for both deep-water sailing and shallow anchorages, while the moderate displacement of 3,086 pounds strikes a balance between performance and stability. The boat's proportions reveal a design optimized for spirited sailing in protected waters and near-coastal environments. With a sail area to displacement ratio of 22.86, she offers respectable performance without being overly demanding to handle. The fractional rig configuration provides excellent sail shape control and reduces weather helm, making her well-suited for both experienced sailors and those looking to develop their skills. Her comfort ratio of 11.53 indicates a relatively quick motion in seaways, characteristic of a boat that prioritizes sailing performance over heavy-weather comfort. The capsize screening formula of 2.21 suggests good stability for coastal sailing conditions. With only 100 hulls built during her production run, the Magnum 85 represents a boutique design that appeals to sailors seeking something distinctive from mainstream production boats. Her fiberglass construction ensures durability while keeping maintenance requirements reasonable for weekend warriors and seasonal cruisers alike.

Dimensions & Specifications
LOA (Length Overall) 27.99 ft / 8.53 m
LWL (Waterline Length) 24.77 ft / 7.55 m
Beam 8.04 ft / 2.45 m
Max Draft 4.92 ft / 1.50 m
Min Draft 0.85 ft / 0.26 m
Displacement 3,086.00 lb / 1,400 kg
Ballast 882.00 lb / 400 kg
Sail Area (Reported) 302.00 ft² / 28.06 m²
Design & Construction
Hull Type Centerboard (Trunk)
Rigging Type Fractional Sloop
Construction FG
Builder Magnum Yacht Association
First Built 1987
Number Built 100
Related Sailboats S2 86 · Aloha 85 · S2 85 · Etap 28I · Ericson 28 2
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Engine & Accommodations
Engine Type Outboard
Frequently Asked Questions

What is the Magnum 85's sail area to displacement ratio?

The Magnum 85 has a Sail Area to Displacement ratio (SA/D) of 22.86. Values between 14–18 are typical cruising sailboats; 18–22 is cruiser/racer; over 22 is performance racing.

What is the Magnum 85's comfort ratio?

The Magnum 85 has a Ted Brewer Comfort Ratio of 11.53. A ratio over 30 indicates good offshore comfort; over 40 is very comfortable offshore.

Is the Magnum 85 safe for offshore sailing?

The Magnum 85 has a Capsize Screening Formula value of 2.21. Values under 2.0 are considered acceptable for offshore sailing; under 1.8 is ideal.

What is the hull speed of the Magnum 85?

The theoretical hull speed of the Magnum 85 is 6.67 kn knots, calculated from its waterline length.

How much does a Magnum 85 weigh?

The Magnum 85 has a displacement of 3,086.00 lb and a length overall (LOA) of 27.99 ft.