The Farr 7500 stands as a definitive benchmark in the evolution of the Australasian trailer sailer, representing a sophisticated collaboration between the high-performance racing pedigree of Farr Yacht Design and the robust production capabilities of New Zealand’s Sea Nymph Boats. Introduced in the late 1970s as Design #118, the 7500 was engineered to bridge the gap between a competitive club racer and a legitimate family cruiser. Unlike many of its contemporaries that sacrificed hull efficiency for interior volume, the Farr 7500 utilized Bruce Farr’s signature light-displacement philosophy, resulting in a vessel that remains one of the fastest and most weatherly trailerable yachts in its size class. Its enduring popularity in New Zealand and Australia is a testament to a design that prioritizes structural integrity and hydrodynamics over fleeting aesthetic trends.
Farr 7500 Information, Review, Specs

- Make
- Farr
- Model
- 7500
- Builder
- Sea Nymph Boats/McDell Marine
- Designer
- Bruce Farr
- Number Built
- Production Year(s)
- 1979 - ??
Sailing Performance & Handling
The sailing characteristics of the Farr 7500 are defined by its generous beam and a high ballast-to-displacement ratio, which provides a level of stiffness often lacking in trailerable boats. Equipped with a heavy cast-iron swing keel weighing approximately 450kg, the boat exhibits excellent righting moments, allowing it to carry full sail longer than many 25-footers when the breeze freshens. According to technical archives from Farr Yacht Design, the hull features a relatively flat run aft and a fine entry, which encourages early planing on a reach and minimizes drag in light airs.
On the helm, the 7500 is remarkably balanced. Under a fractional rig, the boat tracks well upwind, provided the keel is fully deployed and locked. Owners frequently note that the boat feels more like a fixed-keel keelboat than a typical "centerboarder" due to the weight distribution of the swing keel. The lead-ballasted hull ensures that even with the keel retracted for shallow-water exploration, the vessel remains stable, though leeway increases significantly. In heavy weather, the boat’s sea-kindliness shines; it lacks the "twitchy" behavior common in lighter trailer sailers, making it a preferred choice for coastal passages rather than just lake hopping.
Interior Comfort & Variations
The interior of the Farr 7500 is famously deceptive, offering a level of utility that utilized every inch of its 7.62-meter length. The standout feature is the "pop-top" roof, a design element that provides full standing headroom in the galley and main cabin area while at anchor, without compromising the boat’s sleek profile while under sail. The layout typically includes a large V-berth forward, a convertible dinette that seats four comfortably, and two substantial quarter berths extending under the cockpit.
Sea Nymph utilized high-quality GRP moldings for the interior liner, which not only added structural rigidity but also ensured a clean, low-maintenance finish. While the 7500 is the most common cruising variant, it shares DNA with its "sportier" sibling, the Farr 740. While the 740 was often stripped for racing performance, the 7500 was built with dedicated cabinetry, an enclosed head (in many configurations), and a functional galley. Some later models produced in Australia featured slight variations in timber trim and upholstery, but the core Sea Nymph build remains the most sought-after for its "Kiwi-tough" construction standards.
Known Issues & Buyer’s Checklist
Prospective buyers should focus their inspection on the mechanical and structural aspects of the lift-keel system. As a trailer sailer, the keel pivot pin and the lifting cable are primary wear points. If the keel "clunks" while at anchor or under sail, it often indicates wear in the pivot pin or the bushes, a repair that requires the boat to be lifted off its trailer.
Furthermore, the deck-to-hull joint should be inspected for stress fractures, particularly around the chainplates. Like many Sea Nymph builds of this era, the 7500 used a balsa or plywood core in high-load areas of the deck; any moisture ingress around stanchion bases or the pop-top seal can lead to delamination. Finally, the "pop-top" mechanism itself—usually supported by gas struts or manual lifters—should be checked for smooth operation and a watertight seal when closed, as the rubber gaskets can perish over decades of UV exposure.
Community & Resources
The Farr 7500 enjoys a robust legacy supported by various regional trailer sailer associations. In Australia and New Zealand, owners often congregate within the Farr Trailer Sailer Association, which provides a repository for technical drawings, keel-winch replacement guides, and sail plans. These groups are essential for sourcing specific hardware that may no longer be in commercial production.
The Verdict
The Farr 7500 remains one of the most successful "cross-over" yachts ever built in the Southern Hemisphere, offering a rare blend of Bruce Farr’s racing genius and Sea Nymph’s legendary durability.
Pros:
- Exceptional Performance: Far faster and more stable than most trailerable cruisers of the same era.
- Pop-Top Versatility: Provides standing headroom without the aesthetic "clunkiness" of a high-cabin trunk.
- Build Quality: Sea Nymph’s fiberglass work is renowned for its longevity and resistance to osmosis.
- Ease of Transport: Despite its size, it remains a true trailer sailer, capable of being towed by a standard SUV.
Cons:
- Keel Maintenance: The swing keel mechanism requires regular inspection and periodic parts replacement.
- Complexity: The pop-top and lift-keel systems introduce more potential leak and failure points than a fixed-keel boat.
- Weight: At approximately 1,500kg-1,800kg (displacement plus trailer), it requires a capable towing vehicle and a well-maintained multi-axle trailer.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Wing
- Rudder
- 1x —
- Ballast
- 770 lbs (Iron)
- Displacement
- 2535 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 24.83 ft
- Waterline Length (LWL)
- 22.08 ft
- Beam
- 8.17 ft
- Draft
- 5.92 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Fractional Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 261 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 22.46
- Ballast / Displacement Ratio
- 30.37
- Displacement / Length Ratio (D/L) Ratio
- 105.13
- Comfort Ratio
- 10.42
- Capsize Screening Formula
- 2.4
- Hull Speed
- 6.3 kn