The Hunter 39 Sailboat
The Hunter 39, a B&R rigged fractional sloop, was designed by Glenn Henderson and built in the USA by Hunter Yachts.
The B&R-rigged Hunter 39
Published Specification for the Hunter 39
Hull Type: Fin keel and spade rudder
Hull Material: GRP (Fiberglass)
Length Overall: 39'4" (12.00m)
Waterline Length: 34'8" (10.6m)
Beam: 12'11" (3.9m)
Draft: 6'6" (2.0m)
Rig Type: B&R Rig
Displacement: 18,077lb (8,200kg)
Designer: Glenn Henderson
Builder: Hunter Yachts (USA)
Year First Built: 2009
Published Design Ratios for the Hunter 39
1. Sail Area/Displacement Ratio: 23.1
- Less than 16 would be considered under-powered;
- 16 to 20 would indicate reasonably good performance;
- Over 20 suggests relatively high performance.
2. Ballast/Displacement Ratio: 31.0
- Under 40: less stiff, less powerful
- Over 40: stiffer, more powerful
3. Displacement/Length Ratio: 194
- Under 100: Ultralight
- 100 to 200: Light
- 200 to 275: Moderate
- 275 to 350: Heavy
- Over 350: Ultraheavy
4. Comfort Ratio: 25.6
- 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
5. Capsize Screening Formula: 2.0
- Under 2.0 (the lower the better): Better suited for ocean passages
- Over 2.0: Less suited for ocean passages
read more about these Key Performance Indicators...
Summary Analysis of the Design Ratios for the Hunter 39
1. A Sail Area/Displacement Ratio of 23.1 suggests that, in the right hands, the Hunter 39 will have enough performance to leave most other sailboats of similar waterline length well astern.
2. A Ballast/Displacement Ratio of 31.0 means that unless the bulk of the ballast is concentrated in a bulb at the foot of her keel, the Hunter 39 will have a tendency to heel excessively in a gust, and she'll need to be reefed early to keep her sailing upright in a moderate breeze.
3. A Displacement/Length Ratio of 194, tells us the Hunter 39 is clearly a light displacement sailboat. If she's loaded with too much heavy cruising gear her performance will suffer dramatically.
4. Ted Brewer's Comfort Ratio of 25.6 suggests that crew comfort of a Hunter 39 in a seaway is similar to what you would associate with the motion of a coastal cruiser with moderate stability, which is not encouraging news for anyone prone to seasickness.
5. The Capsize Screening Formula (CSF) of 2.0 is on the cusp of suitability for an ocean passage, so venture offshore with caution.
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