Sparta 1/4 Ton Information, Review, Specs

Boat drawing
Make
Model
Number Built
12
Production Year(s)
1974 - ??

The Sparta 1/4 Ton is a distinctive 22-foot monohull sailboat, meticulously crafted by the British builder Butler Mouldings Ltd. and introduced in 1974. Emerging from an era dominated by the International Offshore Rule (IOR), this compact vessel was specifically conceived as a modified version of the popular Achilles 24, designed to achieve an 18-foot IOR rating to compete in the highly competitive 1/4 Ton class. Representing a spirited blend of racing ambition and cruising capability, the Sparta 1/4 Ton offered enthusiasts a lively and capable platform for club racing and coastal adventures.

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History and Design

The story of the Sparta 1/4 Ton is rooted in the innovative spirit of Butler Mouldings Ltd., founded by Chris Butler in 1957. Initially specializing in Glass Reinforced Plastic (GRP) motorcycle parts, the company transitioned into marine construction in the 1960s, quickly establishing a reputation for well-built GRP yachts under the "Achilles" brand. The seminal Achilles 24, launched around 1968, served as the foundation for the Sparta 1/4 Ton.

The Achilles 24 itself was a collaborative design by Oliver Lee, who initially conceived it as a cruising variant of his Ajax racing keelboat, with Chris Butler further developing the design. The Sparta 1/4 Ton specifically evolved from this proven platform, undergoing modifications to optimize its performance and rating under the demanding IOR 1/4 Ton rule of the 1970s. This period saw yacht design progress rapidly, with a strong focus on competitive keelboat racing. With only 12 units reportedly built, the Sparta 1/4 Ton is a relatively rare example of Butler Mouldings' commitment to both cruiser-racer performance and the competitive IOR circuit.

Constructed with a solid fiberglass hull and deck, the Sparta 1/4 Ton features a fin keel and a skeg-hung rudder, indicative of its design for nimble handling and good directional stability.

Sailing Performance and Handling

True to its "1/4 Ton" designation, the Sparta was designed with a clear emphasis on sailing performance and competitive agility within its class. While specific anecdotal reviews for the Sparta 1/4 Ton are scarce due to its limited production, its heritage from the Achilles 24 provides strong indicators of its on-water characteristics. The Achilles 24 is widely regarded as a good performer for its size, known for being stable and relatively stiff.

As a Quarter Tonner, the Sparta would have been engineered for lively handling and responsiveness, making it well-suited for the demanding nature of IOR racing. Its fin keel contributes to efficient upwind performance and maneuverability, while the skeg-hung rudder offers robust steering control, particularly in a seaway. The design intent was to create a boat that could be raced competitively while still offering enough inherent stability and comfort for short-handed cruising.

Accommodations and Layout

Given its compact 22-foot length and primary purpose as a 1/4 Ton racer/cruiser from the 1970s, the Sparta 1/4 Ton's interior accommodations would have prioritized functionality and efficient use of space over extensive luxury. While detailed layout plans for the Sparta 1/4 Ton are not widely available, boats of this class and era typically featured a "spartan" yet practical arrangement.

It is reasonable to infer that the interior would include a V-berth forward, providing sleeping quarters for two. The main cabin would likely feature a small saloon area with basic seating, potentially convertible to additional berths. Amenities would have been minimalist, possibly including a simple galley setup (such as a single-burner stove and a small sink) and a marine head, often without full standing headroom throughout. The design would have aimed to provide sufficient space for crew during races, including stowage for sails, while still offering basic comforts for overnight or weekend cruising. The Achilles 24, its design predecessor, often featured an open-plan cabin, providing a cozy but functional interior for its size.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Skeg-Hung
Ballast
1100 lbs
Displacement
2400 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)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Main Sail Area
-
Foretriangle Sail Area
-
Total Sail Area (Reported)
176 sqft
Total Sail Area (Calc)
-

Dimensions

LOA
22 ft
LWL
19 ft
Beam
7.08 ft
Draft
4.08 ft
Max Headroom
-
Air Draft
-

Calculations

Hull Speed
5.84 kn
Pounds per Inch Immersion
480.65