Designed and built in Queensland, Australia, by John Gross of Fastback Catamarans, the Fastback 30 is a distinctive coastal cruising multihull known for its pioneering "pod" design and aerodynamic profile. Launched in the 1980s, the model was born from a philosophy of "adding lightness," resulting in a vessel that prioritizes sailing efficiency and ease of handling over the sheer interior volume seen in modern production cats. Approximately 50 units of the 30 and its slightly extended sibling, the 32, were produced at the Fastback factory in Thornlands Arctracer.
Fastback 30 Information, Review, Specs
- Make
- Fastback
- Model
- 30
- Builder
- Fastback Catamarans
- Designer
- John Gross
- Number Built
Sailing Performance & Handling
The Fastback 30 is a high-performance cruiser with a Sail Area to Displacement (SA/Disp) ratio of approximately 29.2, according to technical data from SailWiki. This figure places it well into the high-performance category for cruising multihulls, allowing for spirited performance even in light airs. The boat utilizes a unique single-daggerboard configuration, typically located in the starboard hull, which assists in upwind tracking while minimizing the mechanical complexity and weight of dual boards.
Handling is characterized by its light displacement—roughly 2,500 kg—and narrow, efficient hull forms. Unlike many modern catamarans that rely on fixed keels, the Fastback 30 often features beaching keels and kick-up rudders, making it exceptionally well-suited for the shallow coastal waters of the Great Barrier Reef and Moreton Bay. Owners report that the boat remains responsive on the helm, though its low weight requires attentive reefing as wind speeds increase. The aerodynamic "bullet" shape of the cabin top is not merely aesthetic; it was designed to reduce windage, a critical factor for catamarans when sailing into a breeze or attempting to maintain a steady track at anchor.
Interior Comfort & Variations
The interior of the Fastback 30 is divided between a central bridgedeck "pod" and the individual hulls. While the central pod houses the saloon and navigation areas, it does not typically offer the full standing headroom found in larger catamarans; however, the hulls provide a surprising 1.88 to 1.9 meters of headroom Horizon Shores Boat Sales. The layout generally includes two double cabins located midships in each hull, with a galley and head occupying the remaining hull spaces.
The Fastback 32 is the most common sibling, essentially an extension of the 30-foot hull that provides a larger aft cockpit and occasionally more storage. A significant factor for buyers to consider is that many Fastbacks were sold as "owner-finish" kits. This means that while the structural fiberglass work was factory-completed, the interior joinery, electrical systems, and plumbing were installed by the original buyers, leading to significant variations in finish quality across the second-hand market.
Popular Mentions & Media
The Fastback line gained international recognition through the voyages of Jerry and Nina on their Fastback 43, "Arctracer," who documented the design's offshore capabilities and construction quality in their cruising chronicles Arctracer. While the 30 is primarily a coastal vessel, it shares the same design DNA that allowed its larger siblings to successfully navigate the South Pacific and beyond.
Known Issues & Buyer’s Checklist
Prospective buyers should focus their inspections on the unique mechanical systems and the variability of the kit-built interiors.
- Retractable Drive Leg: Many units utilize a centrally mounted outboard or an inboard with a retractable leg (such as the Yanmar SD20 modification). These mechanisms must be checked for corrosion and smooth operation, as they are prone to seizing if not regularly maintained.
- Acrylic Window Crazing: The large, curved forward windows provide excellent visibility but are subject to UV-related crazing and leaks. Replacing these curved sections can be expensive and technically challenging.
- Kit-Build Quality: Because of the factory-to-owner finishing process, the electrical wiring and plumbing may not always meet professional standards. A dedicated survey of the DC systems and through-hull fittings is essential.
- Deck Delamination: While the hulls are generally robust, the decks and cabin tops often utilize a foam sandwich construction. High-stress areas around the mast step and winches should be checked for soft spots or signs of core compression.
Community & Resources
The most active technical community is the Fastback Catamaran Owners Group, which serves as a vital repository for modification tips, window replacement guides, and historical data provided by original builder contacts in Australia.
The Verdict
Pros:
- Excellent light-air performance and high speed-to-length ratio.
- Shallow draft and beaching capability ideal for coastal exploration.
- Aerodynamic design reduces windage and improves fuel efficiency under power.
- Relatively affordable entry point into the world of cruising catamarans.
Cons:
- Interior finish quality varies significantly between individual boats.
- Limited headroom in the central pod compared to modern production cats.
- Large curved windows are prone to leaks and difficult to replace.
- Small displacement makes the vessel sensitive to heavy loading.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Catamaran Sailboat
- Keel Type
- Daggerboard
- Ballast
- -
- Displacement
- 5400 lbs
- Water Capacity
- 50 gal
- Fuel Capacity
- 20 gal
Dimensions
- Length Overall (LOA)
- 30.5 ft
- Waterline Length (LWL)
- -
- Beam
- 16 ft
- Draft
- -
- Max Headroom
- 6.17 ft
- Air Draft
- 35 ft
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 560 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 29.11
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- —
- Comfort Ratio
- —
- Capsize Screening Formula
- 3.65
- Hull Speed
- — kn