The Roberts 25 is a 25.0ft masthead sloop designed by Bruce Roberts and built in fiberglass since 1975.
The Roberts 25 is a moderate weight sailboat which is slightly under powered. It is very stable / stiff and has a good righting capability if capsized. It is best suited as a coastal cruiser.
See all sailboats designed by Bruce Roberts
Roberts 25 for sale elsewhere on the web:
Main features
Model | Roberts 25 | ||
Length | 25 ft | ||
Beam | 8 ft | ||
Draft | 2.75 ft | ||
Country | ?? | ||
Estimated price | $ 0 | ?? |
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Sail area / displ. | 14.72 | ||
Ballast / displ. | 42.49 % | ||
Displ. / length | 256.18 | ||
Comfort ratio | 20.92 | ||
Capsize | 1.92 |
Hull type | Monohull fin keel | ||
Construction | Fiberglass | ||
Waterline length | 20.10 ft | ||
Maximum draft | 2.75 ft | ||
Displacement | 4660 lbs | ||
Ballast | 1980 lbs | ||
Hull speed | 6.01 knots |
We help you build your own hydraulic steering system - Lecomble & Schmitt
Rigging | Masthead Sloop | ||
Sail area (100%) | 256 sq.ft | ||
Air draft | 0 ft | ?? | |
Sail area fore | 140.50 sq.ft | ||
Sail area main | 115.68 sq.ft | ||
I | 28.10 ft | ||
J | 10 ft | ||
P | 24.10 ft | ||
E | 9.60 ft |
Nb engines | 1 | ||
Total power | 0 HP | ||
Fuel capacity | 0 gals |
Accommodations
Water capacity | 0 gals | ||
Headroom | 0 ft | ||
Nb of cabins | 0 | ||
Nb of berths | 0 | ||
Nb heads | 0 |
Builder data
Builder | ?? | ||
Designer | Bruce Roberts | ||
First built | 1975 | ||
Last built | 0 | ?? | |
Number built | 0 | ?? |
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'SOLD' ROBERTS 25 ADVENTURE TRAILER SAILER $12 000
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- Sailboat Guide
Roberts 25 is a 25 ′ 0 ″ / 7.6 m monohull sailboat designed by Bruce Roberts starting in 1975.
Rig and Sails
Auxilary power, accomodations, calculations.
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL
Sail Area / Displacement Ratio
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64) 2/3
- SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D : Displacement in pounds.
Ballast / Displacement Ratio
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
Displacement / Length Ratio
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
Comfort Ratio
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )
- D: Displacement of the boat in pounds
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
Capsize Screening Formula
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
One of most popular of the designers plans. It is said that more than 1000 have been built.
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COMMENTS
285 sq. ft: BALLAST: 898 kg: 1,980 lb: DISPLACEMENT: 2,114 kg: 4,660 lb: TRAILERABLE WEIGHT: ... I purchased my boat plans for a Roberts 25 from Bruce Roberts in ...
25.00 ft / 7.62 m: LWL: ... Bruce Roberts: Download Boat Record: Notes. One of most popular of the designers plans. It is said that more than 1000 have been built.
285 sq. ft: BALLAST: 898 kg: 1,980 lb ... plans for a Roberts 25 from Bruce Roberts in about 1975. ... versions of this very popular cruising trailerable sailboat ...
The Roberts 25 is a 25.0ft masthead sloop designed by Bruce Roberts and built in fiberglass since 1975. The Roberts 25 is a moderate weight sailboat which is slightly under powered. It is very stable / stiff and has a good righting capability if capsized. It is best suited as a coastal cruiser. See all sailboats designed by Bruce Roberts
8 Ft DRAFT: 2 Ft 6 "DISPLACEMENT: 3 T CRUISING SPEED: 5 Knts DESIGNER: Bruce Roberts BUILDER: Bruce Roberts Hull, Owner fitout REGISTRATION NO: LJ296Q AUST REGO: N/A HULL NO: 25/449 ENGINE: BMW 7 HP, 2331 hours FUEL CAPACITY: 70 L DINGHY: No GROUND TACKLE: Plough anchor, Sand anchor, 3.1 M x 10 mm chain, 4.2 M x 8 mm chain, 140 Ft rope COVERS:
Roberts 25 is a 25′ 0″ / 7.6 m monohull sailboat designed by Bruce Roberts starting in 1975. Great choice! Your favorites are temporarily saved for this session.
Bruce Roberts. Blue Water Value Rank (BWVR) 6412. Blue Water Surf Value Rank (BWSVR) 5568. Capsize Comfort Value Rank (CCVR) ... 25 ft i.e. 7,62 m. LWL. 20,1 ft i.e ...
Bruce Roberts preowned sailboats for sale by owner. Bruce Roberts used sailboats for sale by owner. ... Ft lauderdal, Florida; Asking: ... Sailboat Added 25-Apr-2018 ...
Aug 22, 2024 · The Roberts 25 is a very comfortable 25' pocket cruiser. Six-foot standing room throughout, full V-berth, enclosed head compartment, quarter berths on both sides of the salon, and a shoal draft allow for endless cruising possibilites. Relative to other 25' boats, she has a huge amount of room.
BOAT PLANS, BOAT KITS 400 TO CHOOSE FROM; BRUCE ROBERTS; boatplans; boat kits; ... ROBERTS 25 Trailerable sailboat boat plans TOM THUMB 24 26 28 305 330