Sailing Performance & Handling
Under sail, the Aerodyne 35 is defined by its "turbo-charged" technical ratios. With a Sail Area-to-Displacement (SA/Disp) ratio approaching 33 and a Displacement-Length (D/L) ratio of approximately 77, it falls squarely into the category of ultralight performance racers. According to editorial performance tests documented in Blue Water Sailing, the boat is capable of sailing upwind at 8 knots in just 12 knots of true wind and can surge into the high teens on a broad reach when the breeze freshens to 28 knots.
The vessel's handling is dominated by its water ballast system, which provides approximately 1,763 pounds of lateral stability per side. This allows for a narrower fixed keel and a lighter overall displacement, which in turn enables the hull to plane earlier than its contemporaries. The dual rudders ensure that the helmsman maintains total control even when the boat is pressed hard and heeling significantly. However, owner anecdotes from the performance community suggest that the 35 can be "sticky" in light air if the water ballast is not managed correctly or if the boat is over-provisioned with cruising gear, as its low wetted surface relies on the hull staying at its designed trim.
Interior Comfort & Variations
The interior of the Aerodyne 35 reflects a "functional cruiser" philosophy, prioritizing weight management over teak-heavy luxury. The layout is generally open and airy, designed for a couple or a small crew of three. It typically features a sparse but efficient galley located below the companionway to keep weight centered, and two hanging lockers for offshore gear storage.
Unlike the more cavernous Aerodyne 38, the 35’s accommodations are described as "ample but spare." Materials used below deck often involve lightweight honeycombed panels to maintain the boat's high-speed potential. Variations were limited during its production run, though some owners opted for different rig configurations, including a rotating spar or a more conventional carbon mast. The placement of mechanical systems, such as the 18-horsepower Yanmar saildrive, is engineered for easy service access and noise reduction, with most pumps and the engine housed in a centralized, insulated bilge compartment.
Known Issues & Buyer’s Checklist
Prospective buyers of an Aerodyne 35 should focus on the technical complexities of its high-performance construction:
- Core Integrity: Like the Aerodyne 38, the 35 uses a balsa or foam core (often Baltek S45). Any moisture ingress around deck hardware or through the hull can lead to delamination, a costly repair on a carbon/epoxy laminate.
- Water Ballast Plumbing: The fill and transfer pipes, along with the high-capacity pumps (often Rule 3600 or similar), require rigorous inspection for leaks that could introduce seawater into the cabin sole.
- Dual Rudder Bearings: Because the dual rudders are subject to high loads in surfing conditions, the bearings and linkage should be checked for "slop" or excessive wear.
- Sail Drive Seal: The Yanmar 18hp saildrive requires periodic diaphragm replacement; owners should verify when the rubber seal was last changed to prevent catastrophic hull failure.
Community & Resources
Due to the niche nature of the Aerodyne 35, technical resources are often shared within the broader Aerodyne and Groupe Finot owner networks. Detailed design philosophies and polar diagrams for the South 35 variant are preserved on the Finot-Conq technical site. Owners also frequently congregate on high-performance sailing forums to discuss sail plans and water ballast optimization.
The Verdict
The Aerodyne 35 is an uncompromising choice for the sailor who views cruising as an extension of grand-prix racing. It offers unmatched speed for its size but demands an active, skilled hand to extract its full potential.
Pros
- Exceptional speed and early planing capabilities in moderate to heavy air.
- Advanced carbon/epoxy construction provides a stiff, responsive hull.
- Dual rudders and water ballast offer a level of stability rare in 35-footers.
Cons
- Interior volume is significantly smaller than "fat-body" coastal cruisers of the same length.
- Requires active ballast management, which may be exhausting for casual cruisers.
- Extremely sensitive to the weight of additional cruising gear.
