Roberts 25

Roberts 25

Description

The Bruce Roberts 25, designed by Australian naval architect Bruce Roberts-Goodson in 1974 as an affordable, trailerable pocket cruiser for solo sailors or couples embarking on coastal explorations and occasional offshore jaunts, has been built worldwide in fiberglass with multi-chine hulls for straightforward amateur construction, boasting over a hundred examples that prioritize simplicity, stability, and seaworthiness in a compact package. Measuring 25 feet 3 inches LOA (LOD) with a 20-foot-10-inch LWL, 8-foot beam, shoal draft of 2 feet 6 inches (or deep 3 feet 6 inches fin keel, with lifting options), and a light displacement of 4,660 pounds including 1,980 pounds of ballast, this masthead sloop rig features a sail area of 285 square feet across mainsail and genoa for nimble performance in 10-25 knot winds, achieving 5-6.5 knot hull speeds with responsive handling, augmented by an 8- to 15-horsepower outboard or inboard auxiliary like the Yanmar 1GM. Its classic lines include a clipper bow, moderate sheer, and pilothouse variant (Adventurer 25) for all-weather protection, paired with a snug interior offering 6 feet of headroom, two quarter berths plus convertible dinette for four, compact galley, enclosed head, and modest tankage of 20 gallons fuel and 30 gallons water for weekend autonomy. Proven in short passages and trailer launches across Australia, Europe, and North America—as in 1980s builds like the home-completed Tiamo—the Roberts 25 delivers big-boat virtues in a towable form, remaining a cherished entry point for novice cruisers seeking adventure without the commitment of larger vessels.

Construction Details

Designer Bruce Roberts-Goodson
Length 25.000 ft
LOA 25.000 ft
LWL 20.100 ft
Beam 8.000 ft
Displacement 4660 lb
Max Draft 2.750 ft
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The standard boat dimensions

i 29 ft
j 10.33 ft
p 24.83 ft
e 10.75 ft
p2 -
e2 -
i2 -
j2 -

Blueprints

Sails

Roberts 25 - MAINSAIL

Luff * 24.83 ft - (7568 mm)
Foot * 10.75 ft - (3277 mm)
Leech * 26.5 ft - (8077 mm)
Tack Angle * 88 °
Diagonal * 26.71 ft - (8141 mm)
Head (inches) * 4.5 in - (114 mm)
Area * 137.51 ft²
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Roberts 25 - JIBSAIL

Luff * 24.63 ft - (7507 mm)
Foot * 13.95 ft - (4252 mm)
Leech * 21 ft - (6401 mm)
Percentage LP * 115 %
Length Perpendicular * 11.88 ft - (3621 mm)
Deck Angle * 12.01 °
Area * 146.3 ft²
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Roberts 25 - JIBSAIL

Luff 29 ft - (8839 mm)
Foot 11.67 ft - (3557 mm)
Leech 25.25 ft - (7696 mm)
Percentage LP * 97.68 %
Length Perpendicular * 10.09 ft - (3075 mm)
Deck Angle * 10.51 °
Area * 146.37 ft²
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Roberts 25 - GENOA

Luff 29.25 ft - (8915 mm)
Foot 17 ft - (5182 mm)
Leech 26.25 ft - (8001 mm)
Percentage LP * 146.27 %
Length Perpendicular * 15.11 ft - (4606 mm)
Deck Angle * 7.65 °
Area * 221.01 ft²
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Roberts 25 - DRIFTER

Luff 29.25 ft - (8915 mm)
Foot 19 ft - (5791 mm)
Leech 26 ft - (7925 mm)
Perc LP * 160.7 %
Length Perp * 16.6 ft - (5060 mm)
Deck Angle * 9.49 °
Area * 242.8 ft²
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Roberts 25 - ASYMMETRICAL

Luff * 29.25 ft - (8915 mm)
Foot * 17.04 ft - (5194 mm)
Leech * 26.91 ft - (8202 mm)
Perc LP * 165 %
Area * 374 ft²
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Roberts 25 - SPINNAKER

Stays * 29.25 ft - (8915 mm)
MidGirth * 18.59 ft - (5666 mm)
Foot * 18.59 ft - (5666 mm)
Perc LP * 180 %
Area * 462 ft²
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Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.

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