The Ultimate Concepts 32 is a specialized performance catamaran that emerged in the late 1980s, designed by the prolific British multihull architect J.R. Macalpine-Downie and produced by the American builder Carlson Marine. Born from an era of radical experimentation in multihull design, this 32-foot vessel was engineered to bridge the gap between high-speed racing catamarans and functional coastal cruisers. Macalpine-Downie, who was already legendary for designs like the Thai MK4 and the Iroquois, utilized the Ultimate Concepts 32 to showcase the advantages of ultra-lightweight fiberglass construction paired with a high-aspect masthead rig. Though produced in limited numbers, the model remains a notable example of the late-century American sport-multihull movement, characterized by its shallow-draft capabilities and emphasis on raw sail area-to-displacement efficiency.
Ultimate Concepts 32 Information, Review, Specs
- Make
- Ultimate
- Model
- Concepts 32
- Builder
- Carlson Marine
- Designer
- J. R. Macalpine-Downie
- Number Built
- Production Year(s)
- 1989 - ??
Sailing Performance & Handling
The sailing characteristics of the Ultimate Concepts 32 are defined by its multihull geometry and a pivoting centerboard system that allows for exceptional versatility. With the boards up, the vessel draws between 1.5 and 1.8 feet, enabling it to navigate thin-water environments or be brought directly onto a beach—a hallmark of Macalpine-Downie’s design philosophy. Under sail, the masthead sloop configuration provides a powerful, low-center-of-effort sail plan that provides stability even in gusty conditions, though like most catamarans of this vintage, it requires attentive trimming to prevent excessive hull flying.
Anecdotal evidence from multihull enthusiasts suggests that the boat is a spirited performer in light air, benefiting from its light displacement and clean hull lines. However, the use of a masthead rig rather than a fractional rig—common on modern sportboats—means the Ultimate Concepts 32 carries its power lower, which aids in safety and reduces the heeling moment but can make the boat feel less "twitchy" than more modern racing catamarans. Tracking is reported to be reliable when the centerboards are deployed, though the boat's windward performance relies heavily on the condition and alignment of these lifting foils.
Interior Comfort & Variations
Unlike open-deck racing catamarans of the same length, the Ultimate Concepts 32 typically features accommodation housed within its two hulls, though the bridge-deck is often kept clear to maintain a low center of gravity. The interior layout is decidedly Spartan, reflecting its primary mission as a "speed-first" coastal boat rather than a luxury blue-water cruiser. Typically, the hulls contain narrow berths and a basic galley or navigation station, with headroom being limited to a "sitting" height in most areas.
Variations of the model were often tailored to the original owner's racing or cruising preferences. Some versions were optimized for the "Ultimate 30" circuit style of racing with minimal interior weight, while others included basic amenities for weekenders. The use of fiberglass throughout the interior makes for a durable, low-maintenance living space, though it lacks the warmth of traditional timber-heavy designs. The primary "living space" on the Ultimate Concepts 32 is actually the massive cockpit and bridge-deck area, which offers an expansive platform for crew movement during maneuvers or social gatherings at anchor.
Known Issues & Buyer’s Checklist
Prospective buyers of an Ultimate Concepts 32 should focus on the technical integrity of the multihull-specific components. Because these boats were often sailed hard in high-load environments, a thorough inspection is required.
- Daggerboard/Centerboard Trunks: Inspect the trunks for stress cracks or water intrusion. These areas bear significant lateral loads and are prone to leaks if the boards have experienced a hard grounding.
- Hull-to-Bridge-Deck Joinery: As a vintage catamaran, the structural integrity of the bridge-deck beams and their attachment points to the hulls is critical. Look for "working" (movement) in the joints or signs of delamination in the fiberglass bonds.
- Rigging Loads: The masthead rig puts considerable compression on the mast step. Ensure there is no "pumping" damage or compression in the support structure beneath the mast.
- Core Integrity: These boats utilized cored construction to stay light. A moisture meter should be used across the hulls and bridge-deck to check for soft spots or waterlogged balsa/foam.
- Rudder Bearings and Bushings: Given the age and performance nature of the boat, the rudder assemblies often show significant wear. Check for play in the helm and ensure the lifting mechanisms (if equipped) are operational.
Community & Resources
While there is no dedicated "Ultimate Concepts" factory association remaining, owners typically find support through the broader community of Macalpine-Downie design enthusiasts. Technical data and historical discussions are often archived within multihull-centric forums and the Multihull Dynamics database.
The Verdict
The Ultimate Concepts 32 is a rare, high-performance multihull that offers a unique blend of historical pedigree and genuine speed. It is best suited for the technical sailor who prioritizes shallow-draft versatility and a "pure" sailing experience over interior luxury.
Pros:
- Extreme shallow-draft capability with lifting boards.
- Proven design lineage from a master of catamaran architecture.
- High-speed potential in light to moderate winds.
- Spacious deck area for a 32-foot boat.
Cons:
- Very limited interior headroom and amenities.
- Limited production makes parts and model-specific knowledge scarce.
- Sensitive to weight; performance degrades significantly when over-laden for cruising.
- Vintage multihull construction requires careful structural monitoring.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Catamaran Sailboat
- Keel Type
- Centerboard
- Ballast
- -
- Displacement
- 6150 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 32 ft
- Waterline Length (LWL)
- 30 ft
- Beam
- 13.33 ft
- Draft
- 5 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- -
Calculations
- Sail Area / Displacement (SA/D) Ratio
- —
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 101.69
- Comfort Ratio
- 9.87
- Capsize Screening Formula
- 2.91
- Hull Speed
- 7.34 kn