Ra-Antares Information, Review, Specs

Boat drawing
Make
Model
Number Built
Production Year(s)
1975 - ??

The Ra-Antares is a distinctive 25-foot monohull sailboat, recognized for its heritage as an International Offshore Rule (IOR) 1/4 ton design, crafted by naval architect Hubert Weber. Launched into production in 1975 by the German builder Plasto GmbH & Co., this compact vessel was conceived as a light and high-performing racing boat, making it a compelling choice for sailing enthusiasts seeking a spirited experience on the water. Plasto GmbH & Co., a builder that began its journey in 1970, likely focused on fiberglass and composite construction, a material trend that defined boat building in the latter half of the 20th century.

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Designed by Hubert Weber in the mid-1970s, the Ra-Antares draws its lineage from the competitive IOR 1/4 ton class, a design philosophy that prioritized performance within specific rating rules. Plasto GmbH & Co., the manufacturer, maintained a quiet yet sustained presence in the sailboat market, with its name suggesting a dedication to plastic (fiberglass) construction, emphasizing durability and potential cost-effectiveness.

During its production run, which commenced in 1975, the Ra-Antares was offered with variations. Notably, a "deep draft (sport model)" was available, featuring a draft of 4.69 feet (1.43 meters), indicating a more performance-oriented configuration. Information also suggests the existence of both a "regatta version" and a "family version," with the latter featuring a shallower draft, catering to different sailing preferences and uses.

Sailing Performance and Handling

The Ra-Antares, with a length overall of 25.29 feet and a waterline length of 20.01 feet, is characterized as a light and very high-performing sailboat, often categorized as a "light racer". Designed as a masthead sloop with a fin keel and spade rudder, it is particularly well-suited for racing. Anecdotal descriptions highlight the boat's excellent stability and stiffness. It is noted for performing well in lighter wind conditions. Despite its stability, it is also observed to have a low righting capability if capsized, a characteristic sometimes associated with lighter, performance-focused designs.

Accommodations and Layout

Specific detailed information regarding the interior accommodations and layout of the Plasto Ra-Antares is not widely publicized in available records. While the boat's design clearly prioritizes sailing performance, typical arrangements for a vessel of its size would likely include a basic V-berth forward, a compact salon area, and possibly a small galley and head, designed to maximize usable space within its 8.17-foot beam. Given Plasto GmbH & Co.'s likely emphasis on fiberglass construction, the interior finish would probably reflect the utilitarian yet durable materials common in boats of its era.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
1389 lbs
Displacement
3351 lbs
Water Capacity
-
Fuel Capacity
-

Engine

Engine Make
Farymann
Engine Model
L 30
Engine Type
Engine HP
8
Engine Count
1
Drive Type
Fuel Type
Diesel
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Main Sail Area
-
Foretriangle Sail Area
-
Total Sail Area (Reported)
347 sqft
Total Sail Area (Calc)
-

Dimensions

LOA
25.29 ft
LWL
20.01 ft
Beam
8.17 ft
Draft
4.1 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
5.99 kn
Pounds per Inch Immersion
584.14