Dencho 30 Information, Review, Specs

Make
Model
Number Built
Production Year(s)
1985 - ??

The Dencho 30, also widely recognized as the ADHARA 30, is a highly regarded performance monohull sailboat that emerged from the specialized yards of Dencho Marine in Long Beach, California. Conceived by the renowned naval architect Doug Peterson, this vessel was designed with a clear focus on competitive racing, specifically as an MORC (Midget Ocean Racing Club) 'maxi'. She quickly garnered a reputation for her agile handling and spirited performance, embodying the builder's commitment to high-quality, limited-production racing yachts.

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History and Design

The Dencho 30 began production in 1985 at Dencho Marine, a builder founded by Dennis Choate in 1973, known for its expertise in crafting grand prix race boats. The vessel was built for a short period, with production ending around 1986. Designed by Doug Peterson, a name synonymous with high-performance yacht design since his groundbreaking "Ganbare" One Tonner in 1973, the Dencho 30 was intended as an evolution of the earlier Pinnacle 29/30. Peterson's philosophy typically centered on creating fast, well-balanced boats capable of competitive racing, a trait clearly reflected in the Dencho 30's specifications and purpose. Dencho Marine's manufacturing ethos during this era was characterized by a commitment to robust construction, essential for the demanding environment of competitive sailing, often optimizing vessels for specific racing rulesets.

Sailing Performance and Handling

The Dencho 30's design ratios provide significant insight into its performance characteristics. With a sail area to displacement ratio of approximately 24.22, she is well-powered, suggesting strong performance in light air conditions. This high ratio indicates that the boat can carry a good amount of sail area relative to its weight, allowing it to accelerate quickly and maintain speed even in marginal breezes.

Her ballast to displacement ratio of about 0.407 points to a relatively stiff and stable boat. This means the Dencho 30 is designed to stand up to its canvas and resist excessive heeling in stronger winds, contributing to both control and comfort when sailing hard on the wind. The displacement to length ratio, at approximately 145.35, firmly places the Dencho 30 in the lighter, more performance-oriented category for its size. This relatively low ratio implies a design focused on speed, responsiveness, and reduced wetted surface, further emphasizing its racing pedigree. Overall, the Dencho 30, with its fin keel and spade rudder, is configured for nimble handling and efficient performance across a range of wind conditions.

Accommodations and Layout

As a sailboat primarily designed for racing and performance, the interior accommodations of the Dencho 30 generally prioritize functionality and efficiency over extensive cruising amenities. While specific detailed layouts or interior photographs for the Dencho 30 are not widely published, typical performance-oriented boats of this size and era usually feature a practical arrangement. Such layouts commonly include a V-berth forward, a compact head, a modest main salon with settee berths, and a basic galley. Interior finishes likely emphasize durable, low-maintenance materials, consistent with a vessel intended for rigorous use. Storage would be adequate for racing gear and short-term cruising, with ventilation designed to provide comfort in warmer climates.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
2200 lbs
Displacement
5400 lbs
Water Capacity
-
Fuel Capacity
-

Engine

Engine Make
Engine Model
Engine Type
Engine HP
Engine Count
1
Drive Type
Fuel Type
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
36.25 ft
E (Main Foot)
12.25 ft
I (Foretriangle Height)
40.84 ft
J (Foretriangle Base)
12.07 ft
Forestay Length (est)
42.59 ft
Main Sail Area
222.03 sqft
Foretriangle Sail Area
246.47 sqft
Total Sail Area (Reported)
468 sqft
Total Sail Area (Calc)
468.5 sqft

Dimensions

LOA
29.89 ft
LWL
25.5 ft
Beam
10.67 ft
Draft
5.75 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
6.77 kn
Pounds per Inch Immersion
972.19