Design Brief & Intent
The Lanaverre 390 was conceived primarily as a training vessel and family-friendly day-sailor. At 12.8 feet overall, it carved out a specific niche as an easy-to-rig, easy-to-transport dinghy. Unlike the high-performance dinghies of the era that required a trapeze and spinnaker to sail effectively, the 390 was designed to be easily managed by a novice crew of two, or even a single adult.
To survive the rigorous demands of sailing schools, Christian Maury eschewed delicate structural wooden elements, opting instead for a self-draining, all-fiberglass cockpit surrounded by wide, buoyant side tanks. These side tanks served the double purpose of providing comfortable hiking benches and ensuring positive buoyancy in the event of a capsize. While its direct competitor, the Vaurien, relied on a hard-chine plywood aesthetic, the Lanaverre 390 featured a modern, round-bilged hull form with an elegantly flared bow. It was simple, resilient, and focused entirely on safety and educational utility.
Sailing Performance & Handling
On the water, the Lanaverre 390 is surprisingly lively yet highly predictable. Despite its training pedigree, it features a remarkably high sail area-to-displacement ratio of 46.36, indicating that its 91 square feet of sail area can easily power the light 176-pound hull in soft breezes. The boat accelerates quickly and responds to subtle shifts in crew weight. With a capsize screening ratio of 3.60, the boat is typical of an unballasted sailing dinghy; it relies entirely on the crew's active weight placement to maintain stability.
The underbody features a well-proportioned aluminum centerboard, which dramatically reduces leeway when sailing on a close reach. The kick-up rudder and centerboard arrangement are remarkably robust, giving the boat a solid, substantial feel when carving through light chop. While it lacks the ultimate downwind planing speed of a modern high-performance skiff, the 390 tracks beautifully and is incredibly forgiving of trim mistakes. It provides the immediate physical feedback necessary to teach the fundamentals of sail trim and helm balance without immediately punishing the student with a cold swim.
Variations & Configurations
The Lanaverre 390 was produced in a singular, standardized open-cockpit layout. It features a fractional sloop rig with an un-tapered, deck-stepped aluminum mast and boom. The standard rigging setup is highly straightforward, utilizing a basic mainsheet traveler, a simple vang, and jib sheets run through deck-mounted fairleads.
The primary physical variation found among boats today lies in their retrofitted components. Because the 390 shares some hull characteristics and dimensions with the International 420, many vintage owners have modified their boats over the decades. It is common to find 390 hulls retrofitted with spars, mainsails, and jibs salvaged from older 420s. While this increases the sail plan’s power, it also increases the load on the vintage chainplates and changes the boat's forgiving handling characteristics.
Known Issues & Triage
For buyers evaluating a classic Lanaverre 390, several age-related vulnerabilities require careful inspection:
- Buoyancy Tank Saturation: The molded side tanks originally relied on blocks of polystyrene foam inside for safety flotation. Over fifty years, water can leak into these chambers through loose inspection ports, deck-to-hull joints, or hardware fasteners, waterlogging the foam. This can easily double the boat's weight, ruining its performance and trailerability. Standard triage involves installing modern, watertight inspection ports, digging out the degraded polystyrene, and replacing it with modern closed-cell foam blocks or heavy-duty inflatable buoyancy bags.
- Stress Cracking and Deck Flex: The GRP laminate of the late 1960s was laid by hand. While generally thick and durable, high-stress areas like the mast step, the centerboard trunk cap, and the cockpit floor can suffer from localized flexing and gelcoat spider cracks. Reinforcing the underside of the mast step with a fiberglass patch or a small structural block is a common preventative repair.
- Hardware and Fitting Failure: Original nylon fairleads, plastic cam cleats, and bronze-popped fittings are prone to severe UV degradation and corrosion. These should be systematically replaced with modern, reliable stainless steel or composite hardware to prevent sudden failures under load.
- Galvanic Corrosion at the Pivot Bolt: The aluminum centerboard pivots on a stainless steel or bronze bolt. Without proper maintenance, galvanic corrosion can seize the bolt or wear out the fiberglass bushing in the trunk. Restorers must ensure the centerboard drops and retracts smoothly and that the pivot pin remains sealed and structurally sound.
Market Snapshot & Economics
The Lanaverre 390 is a rare commodity outside of continental Europe, with the vast majority of surviving units located in France, Belgium, and neighboring coastal regions. Because it was built as a mass-market trainer rather than a premier racing yacht, it does not command the collector premium of vintage wooden classic dinghies. Instead, it trades at an exceptionally accessible value point.
The economics of restoring a 390 are highly favorable for DIY enthusiasts. Its simple fractional rig, lack of specialized high-tech hardware, and modest sail area mean that a complete refit can be completed for a fraction of the cost of a modern dinghy. Furthermore, its lightweight 176-pound hull makes it easy to tow behind any compact car or even transport on heavy-duty roof racks, eliminating the need for expensive slip or storage fees.
The Verdict
The Lanaverre 390 is a charming, robust, and historically significant French sailing dinghy that offers an incredibly inexpensive entry point into classic day-sailing. While it lacks the speed and modern pedigree of a contemporary racing skiff, it rewards its crew with reassuring stability, straightforward rigging, and an agile helm that makes every afternoon on the water an enjoyable learning experience.
- Extremely lightweight hull that is easy to trailer, launch, and store
- Robust, thick fiberglass construction that tolerates bumps and grounding
- Forgiving and predictable hull form that is ideal for teaching novices
- Very low cost of acquisition and highly economical to refit and maintain
- Low-maintenance aluminum centerboard and kick-up rudder
Cons
- Highly localized market, making boats and original spare parts very difficult to find outside of Europe
- Vintage hulls are prone to water absorption and waterlogged flotation foam
- Lacks the high-performance capabilities and active racing fleets of the International 420
- Original nylon deck hardware and fasteners are often degraded and require complete replacement
