Roberts Spray 41

Roberts Spray 41

Description

The Bruce Roberts Spray 41 is a design in the enduring Spray series by Australian naval architect Bruce Roberts, launched in the 1970s as a robust, owner-buildable bluewater cruising ketch or cutter for ambitious solo sailors or couples on extended offshore passages, with several examples constructed worldwide primarily in steel or ferrocement hulls for exceptional durability and affordability. Measuring 41 feet LOA with a 35-foot LWL, 12-foot-6-inch beam, 5-foot draft on a long keel for stability and shoal-water access, and a displacement of approximately 28,000 pounds including 10,000 pounds of ballast, this gaff- or Bermudan-rigged vessel offers a sail area of around 800-900 square feet across mainsail, mizzen (for ketch), genoa, and staysail for balanced 7-8.5 knot performance in 15-35 knot winds with sea-kindly motion and minimal weather helm, powered by a 40- to 60-horsepower diesel auxiliary like the Perkins 4-108. Its iconic lines echo Joshua Slocum's original Spray with a clipper bow, counter stern, and moderate sheer on a heavy-duty hull with optional pilothouse, complemented by a spacious interior featuring 6-foot-6-inch headroom, six to eight berths in V-forward, saloon settees, double aft cabin, U-galley, dual heads with showers, and substantial tankage of 100-150 gallons fuel and 200 gallons water for monthlong autonomy. Proven in global circumnavigations and Southern Ocean trials—as in steel-hulled builds like Aries documented in cruising logs and sales listings—the Spray 41 embodies timeless seaworthiness and economical construction in a substantial yet manageable package, ideal for dreamers scaling up from smaller Sprays while honoring Slocum's legacy.

Construction Details

Designer Bruce Roberts-Goodson
Length 41.000 ft
LOA 41.000 ft
LWL 35.000 ft
Beam 12.500 ft
Displacement 28000 lb
Ballast 10000 lb
Max Draft 5.000 ft
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The standard boat dimensions

i 43.50 ft
j 19.25 ft
p 37.50 ft
e 14 ft
p2 -
e2 -
i2 -
j2 -

Blueprints

Sails

Roberts Spray 41 - MAINSAIL

Luff * 37.5 ft - (11430 mm)
Foot * 14 ft - (4267 mm)
Leech * 39.39 ft - (12006 mm)
Tack Angle * 87.97 °
Diagonal * 39.56 ft - (12058 mm)
Head (inches) * 6 in - (152 mm)
Area 262.19 ft²
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Roberts Spray 41 - JIBSAIL

Luff * 38.06 ft - (11601 mm)
Foot * 27.32 ft - (8327 mm)
Leech * 31.25 ft - (9525 mm)
Percentage LP * 115 %
Length Perpendicular * 22.14 ft - (6748 mm)
Deck Angle * 12 °
Area 421.33 ft²
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Roberts Spray 41 - GENOA

Luff * 45.19 ft - (13774 mm)
Foot * 32.66 ft - (9955 mm)
Leech * 41.58 ft - (12674 mm)
Percentage LP * 150 %
Length Perpendicular * 28.88 ft - (8803 mm)
Deck Angle * 4 °
Area 652.35 ft²
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Roberts Spray 41 - SPINNAKER

Stays * 45.19 ft - (13774 mm)
MidGirth * 34.65 ft - (10561 mm)
Foot * 34.65 ft - (10561 mm)
Perc LP * 180 %
Area 1330.96 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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