The Hunter 28.5 Sailboat

Published Specification for the Hunter 28.5

Hull Type: Fin keel with spade rudder

Hull Material:  GRP (fibreglass)

Length Overall: 28' 5" / 8.7m

Waterline Length: 23' 9" / 7.2m

Beam: 10' 6" / 3.2m

Draft: 5' 2" / 1.6m

Rig Type: B&R

Displacement: 7,000lb / 3,175kg

Sail Area/Displacement Ratio: 17.5

Displacement/Length Ratio: 233

Designer: Hunter Design

Builder: Hunter Marine (USA)

Year First Built: 1985

Year Last Built: 1988

Number Built: not known

Owners Association: The Hunter Association

Published Design Ratios for the Hunter 28.5

Sail Area/Displacement Ratio: 17.5

• Less 16 would be considered under-powered;
• 16 to 20 would indicate reasonably good performance;
• Over 20 suggests relatively high performance.

Ballast/Displacement Ratio: 42.9

• Under 40: less stiff, less powerful
• Over 40: stiffer, more powerful

Displacement/Length Ratio: 233

• Under 100: Ultralight
• 100 to 200: Light
• 200 to 275: Moderate
• 275 to 350: Heavy
• Over 350: Ultraheavy

Comfort Ratio: 18.8

• Under 20 indicates a lightweight racing boat
• 20 to 30 indicates a coastal cruiser
• 30 to 40 indicates a moderate offshore cruising boat
• 40 to 50 indicates a heavy offshore boat
• Over 50 indicates an extremely heavy offshore boat

Capsize Screening Formula: 2.2

• Under 2.0 (the lower the better): Better suited for ocean passages
• Over 2.0: Less suited for ocean passages

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