Ross 650 Information, Review, Specs

Sailing Performance & Handling

The Ross 650 is defined by its lively and responsive nature, a direct result of its light-displacement hull and a generous fractional rig. With a displacement-to-length ratio (D/L) of approximately 114, the vessel is categorized as a light racer, allowing it to accelerate rapidly in puffs and achieve planning speeds downwind—a feat rarely seen in traditional 21-foot cruisers. The sail area-to-displacement ratio (SA/D) sits between 19 and 21.5, indicating a boat that is effectively "over-rigged" for its size.

While this translates to exceptional light-air performance, it also makes the 650 notoriously tender. Anecdotal reports from long-time owners suggest that the boat is highly sensitive to weight placement; maintaining a flat heel is essential for speed, as the boat tends to "sideways slip" if allowed to lean too far. For those transitioning from heavier displacement boats, the Ross 650 feels "flighty" and requires proactive reefing. However, when properly trimmed, it tracks well and rewards the helm with a level of feedback similar to a racing dinghy. The lead drop keel provides a necessary counterweight, though many competitive sailors prefer versions fitted with a bulb for added stiffness.

Interior Comfort & Variations

Despite its performance pedigree, the Ross 650 offers a surprisingly spacious interior for a 6.5-meter hull. The beam-to-length ratio of 2.62 creates a "spacy" feel compared to older, narrower trailer yachts. The layout typically features a V-berth forward and two long quarter berths that extend under the cockpit seats, providing sleeping accommodations for up to four adults, though three is the practical limit for extended trips.

Materials are generally functional, utilizing GRP liners with timber trim (often Kauri or Teak in NZ-built models) to provide a warm aesthetic without adding excessive weight. Variations between hulls are common, as many were sold as kits or "stage builds." While the racing-oriented hulls might feature stripped-out interiors to save weight, the cruising variants often include a basic galley with a two-burner stove and a portable head located under the V-berth. There are no major sibling variations on the 650 hull itself, but it is frequently compared to its larger sibling, the Ross 780, which offers standing headroom and more substantial cruising amenities on a similar design philosophy.

Popular Mentions & Media

The Ross 650 has maintained a strong presence in the Southern Hemisphere’s regatta circuit for decades. It is a staple of the New Zealand Trailer Yacht Association and frequently appears in the results of the Coastal Classic and Bay of Islands Sailing Week. The boat's design is often highlighted in retrospective pieces on Murray Ross's career, such as those found in Boating New Zealand, which often cite the 650 as a benchmark for the development of the modern sportsboat.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the Ross 650 with a focus on its structural integrity and rigging, as many of these boats have been raced hard.

• Keel Box and Pivot: The vertical drop keel mechanism is a high-stress area. Inspect the keel box for stress fractures or signs of water ingress into the core. If the boat has a swing-keel conversion, check the pivot bolt for wear and ensure the lifting tackle is in good condition.
• Deck Core Integrity: Like many GRP boats of this era, the Ross 650 utilized a sandwich construction. Use a plastic hammer to "tap-test" the deck, especially around the chainplates and mast step, to identify soft spots caused by delamination.
• Rigging and Spars: The fractional rig is under significant tension. Check the mast for any "pumping" damage or deformation near the spreaders. Given the age of the fleet, a full standing rigging replacement is often a necessary first step for new owners.
• Rudder Blade and Gudgeons: The high speeds achieved by the 650 put immense pressure on the transom and rudder assembly. Check for play in the gudgeons and cracks in the rudder blade, which is often a semi-balanced design prone to high loads.

Community & Resources

The Ross 650 community is most active within the New Zealand Trailer Yacht Association and various regional yacht clubs in Auckland and Queensland. While no standalone "Ross 650 Association" remains active, technical support and class rules are often managed through broader Murray Ross design groups or the NZTYA technical committees.

The Verdict

The Ross 650 remains one of the most exciting trailer yachts on the used market, offering a level of performance that belies its age. It is an ideal vessel for the sailor who values speed and tactical engagement over luxury, though it provides enough "camping-style" comfort for weekend coastal adventures.

Pros:

• Exceptional speed and planning ability in a small package.
• Relatively light and easy to tow with a standard family vehicle.
• Clever interior layout that maximizes usable space for a 21-foot boat.
• Strong resale value due to a dedicated following in NZ and Australia.

Cons:

• Tender and demanding to sail; requires early reefing in heavy air.
• Interior headroom is limited, making it unsuitable for long-term liveaboard use.
• Sensitivity to weight means performance suffers significantly when heavily loaded for cruising.